[Response Ops][Connectors] New xpack.actions.email.services.enabled Kibana setting (#223363)

## Summary

Closes #220288

## Release note
New kibana setting `xpack.actions.email.services.enabled` to
enable/disable email services for email connector.

.buildkite/ftr_platform_stateful_configs.yml

@@ -198,7 +198,8 @@ enabled:
   - x-pack/test/functional_with_es_ssl/apps/discover_ml_uptime/config.ts
   - x-pack/test/functional_with_es_ssl/apps/embeddable_alerts_table/config.ts
   - x-pack/test/functional_with_es_ssl/apps/triggers_actions_ui/config.ts
-  - x-pack/test/functional_with_es_ssl/apps/triggers_actions_ui/connectors/with_aws_ses_kibana_config/config.ts
+  - x-pack/test/functional_with_es_ssl/apps/triggers_actions_ui/connectors/with_email_aws_ses_kbn_config/config.ts
+  - x-pack/test/functional_with_es_ssl/apps/triggers_actions_ui/connectors/with_email_services_enabled_kbn_config/config.ts
   - x-pack/test/functional_with_es_ssl/apps/triggers_actions_ui/shared/config.ts
   - x-pack/test/functional_with_es_ssl/apps/triggers_actions_ui/connectors/webhook_disabled_ssl_pfx/config.ts
   - x-pack/test/functional/apps/advanced_settings/config.ts

docs/reference/configuration-reference/alerting-settings.md

@@ -150,6 +150,12 @@ $$$action-config-email-domain-allowlist$$$
     Data type: `int`
     Default: `465`
 
+`xpack.actions.email.services.enabled` ![logo cloud](https://doc-icons.s3.us-east-2.amazonaws.com/logo_cloud.svg "Supported on {{ech}}")
+:   An array of strings indicating all email services that are enabled. Available options are `elastic-cloud`, `google-mail`, `microsoft-outlook`, `amazon-ses`, `microsoft-exchange`, and `other`. If the array is empty, no email services are enabled. The default value is `["*"]`, which enables all email services.
+
+    Data type: `string`
+    Default: `["*"]`
+
 `xpack.actions.enableFooterInEmail` ![logo cloud](https://doc-icons.s3.us-east-2.amazonaws.com/logo_cloud.svg "Supported on {{ech}}")
 :   A boolean value indicating that a footer with a relevant link should be added to emails sent as alerting actions.
 

docs/settings-gen/source/kibana-alert-action-settings.yml

@@ -326,6 +326,28 @@ groups:
             ess: all
          # example: |
 
+      - setting: xpack.actions.email.services.enabled
+        id: action-config-email-services-
+        description: |
+          An array of strings indicating all email services that are enabled. Available options are `elastic-cloud`, `google-mail`, `microsoft-outlook`, `amazon-ses`, `microsoft-exchange`, and `other`. If the array is empty, no email services are enabled. The default value is `["*"]`, which enables all email services.
+        # state: deprecated/hidden/tech-preview
+        # deprecation_details: ""
+        # note: ""
+        # tip: ""
+        # warning: ""
+        # important: ""
+        datatype: enum
+        default: ["*"]
+        # options:
+        #   - option:
+        #     description: ""
+        # type: static/dynamic
+        applies_to:
+          deployment:
+            self: all
+            ess: all
+         # example: |
+
       - setting: xpack.actions.enableFooterInEmail
         # id:
         description: |

src/dev/build/tasks/os_packages/docker_generator/resources/base/bin/kibana-docker

@@ -214,6 +214,7 @@ kibana_vars=(
     xpack.actions.email.domain_allowlist
     xpack.actions.email.services.ses.host
     xpack.actions.email.services.ses.port
+    xpack.actions.email.services.enabled
     xpack.actions.enableFooterInEmail
     xpack.actions.enabledActionTypes
     xpack.actions.maxResponseContentLength

src/platform/test/plugin_functional/test_suites/core_plugins/rendering.ts

@@ -203,6 +203,7 @@ export default function ({ getService }: PluginFunctionalProviderContext) {
         'vis_type_xy.readOnly (boolean?|never)',
         'vis_type_vega.enableExternalUrls (boolean?)',
         'xpack.actions.email.domain_allowlist (array?)',
+        'xpack.actions.email.services.enabled (array?)',
         'xpack.actions.webhook.ssl.pfx.enabled (boolean?)',
         'xpack.apm.serviceMapEnabled (boolean?)',
         'xpack.apm.ui.enabled (boolean?)',

x-pack/platform/plugins/shared/actions/public/plugin.ts

@@ -14,12 +14,16 @@ export interface ActionsPublicPluginSetup {
     emails: string[],
     options?: ValidateEmailAddressesOptions
   ): ValidatedEmail[];
+  enabledEmailServices: string[];
   isWebhookSslWithPfxEnabled?: boolean;
 }
 
 export interface Config {
   email: {
     domain_allowlist: string[];
+    services: {
+      enabled: string[];
+    };
   };
   webhook: {
     ssl: {
@@ -32,11 +36,13 @@ export interface Config {
 
 export class Plugin implements CorePlugin<ActionsPublicPluginSetup> {
   private readonly allowedEmailDomains: string[] | null = null;
+  private readonly enabledEmailServices: string[];
   private readonly webhookSslWithPfxEnabled: boolean;
 
   constructor(ctx: PluginInitializerContext<Config>) {
     const config = ctx.config.get();
     this.allowedEmailDomains = config.email?.domain_allowlist || null;
+    this.enabledEmailServices = Array.from(new Set(config.email?.services?.enabled || ['*']));
     this.webhookSslWithPfxEnabled = config.webhook?.ssl.pfx.enabled ?? true;
   }
 
@@ -44,6 +50,7 @@ export class Plugin implements CorePlugin<ActionsPublicPluginSetup> {
     return {
       validateEmailAddresses: (emails: string[], options: ValidateEmailAddressesOptions) =>
         validateEmails(this.allowedEmailDomains, emails, options),
+      enabledEmailServices: this.enabledEmailServices,
       isWebhookSslWithPfxEnabled: this.webhookSslWithPfxEnabled,
     };
   }

x-pack/platform/plugins/shared/actions/server/actions_config.mock.ts

@@ -44,6 +44,7 @@ const createActionsConfigMock = () => {
       },
     }),
     getAwsSesConfig: jest.fn().mockReturnValue(null),
+    getEnabledEmailServices: jest.fn().mockReturnValue(['*']),
   };
   return mocked;
 };

x-pack/platform/plugins/shared/actions/server/actions_config.test.ts

@@ -633,6 +633,14 @@ describe('getAwsSesConfig()', () => {
     expect(acu.getAwsSesConfig()).toEqual(null);
   });
 
+  test('returns null when no email.services.ses config set', () => {
+    const acu = getActionsConfigurationUtilities({
+      ...defaultActionsConfig,
+      email: { services: {} },
+    });
+    expect(acu.getAwsSesConfig()).toEqual(null);
+  });
+
   test('returns config if set', () => {
     const acu = getActionsConfigurationUtilities({
       ...defaultActionsConfig,
@@ -652,3 +660,47 @@ describe('getAwsSesConfig()', () => {
     });
   });
 });
+
+describe('getEnabledEmailServices()', () => {
+  test('returns all services when no email config set', () => {
+    const acu = getActionsConfigurationUtilities(defaultActionsConfig);
+    expect(acu.getEnabledEmailServices()).toEqual(['*']);
+  });
+
+  test('returns all services when no email.services config set', () => {
+    const acu = getActionsConfigurationUtilities({ ...defaultActionsConfig, email: {} });
+    expect(acu.getEnabledEmailServices()).toEqual(['*']);
+  });
+
+  test('returns all services when no email.services.enabled config set', () => {
+    const acu = getActionsConfigurationUtilities({
+      ...defaultActionsConfig,
+      email: { services: {} },
+    });
+    expect(acu.getEnabledEmailServices()).toEqual(['*']);
+  });
+
+  test('returns only enabled services', () => {
+    const acu = getActionsConfigurationUtilities({
+      ...defaultActionsConfig,
+      email: {
+        services: {
+          enabled: ['google-mail', 'microsoft-exchange'],
+        },
+      },
+    });
+    expect(acu.getEnabledEmailServices()).toEqual(['google-mail', 'microsoft-exchange']);
+  });
+
+  test('returns all services when enabled is set to "*" in config', () => {
+    const acu = getActionsConfigurationUtilities({
+      ...defaultActionsConfig,
+      email: {
+        services: {
+          enabled: ['*'],
+        },
+      },
+    });
+    expect(acu.getEnabledEmailServices()).toEqual(['*']);
+  });
+});

x-pack/platform/plugins/shared/actions/server/actions_config.ts

@@ -63,6 +63,7 @@ export interface ActionsConfigurationUtilities {
     };
   };
   getAwsSesConfig: () => AwsSesConfig;
+  getEnabledEmailServices: () => string[];
 }
 
 function allowListErrorMessage(field: AllowListingField, value: string) {
@@ -243,15 +244,23 @@ export function getActionsConfigurationUtilities(
       };
     },
     getAwsSesConfig: () => {
-      if (config.email?.services?.ses.host && config.email?.services?.ses.port) {
+      if (config.email?.services?.ses?.host && config.email?.services?.ses?.port) {
         return {
-          host: config.email?.services?.ses.host,
+          host: config.email?.services?.ses?.host,
-          port: config.email?.services?.ses.port,
+          port: config.email?.services?.ses?.port,
           secure: true,
         };
       }
 
       return null;
     },
+    getEnabledEmailServices() {
+      const emailServices = config.email?.services?.enabled;
+      if (emailServices) {
+        return Array.from(new Set(Array.from(emailServices)));
+      }
+
+      return ['*'];
+    },
   };
 }

x-pack/platform/plugins/shared/actions/server/config.test.ts

@@ -238,7 +238,7 @@ describe('config validation', () => {
 
     config.email = {};
     expect(() => configSchema.validate(config)).toThrowErrorMatchingInlineSnapshot(
-      `"[email]: Email configuration requires either domain_allowlist or services.ses to be specified"`
+      `"[email]: email.domain_allowlist or email.services must be defined"`
     );
 
     config.email = { domain_allowlist: [] };
@@ -285,35 +285,35 @@ describe('config validation', () => {
     test('validates empty email config', () => {
       config.email = {};
       expect(() => configSchema.validate(config)).toThrowErrorMatchingInlineSnapshot(
-        `"[email]: Email configuration requires either domain_allowlist or services.ses to be specified"`
+        `"[email]: email.domain_allowlist or email.services must be defined"`
       );
     });
 
     test('validates email config with empty services', () => {
       config.email = { services: {} };
       expect(() => configSchema.validate(config)).toThrowErrorMatchingInlineSnapshot(
-        `"[email]: Email configuration requires either domain_allowlist or services.ses to be specified"`
+        `"[email.services]: email.services.enabled or email.services.ses must be defined"`
       );
     });
 
     test('validates email config with empty ses service', () => {
       config.email = { services: { ses: {} } };
       expect(() => configSchema.validate(config)).toThrowErrorMatchingInlineSnapshot(
-        `"[email]: Email configuration requires either domain_allowlist or services.ses to be specified"`
+        `"[email.services.ses.host]: expected value of type [string] but got [undefined]"`
       );
     });
 
     test('validates ses config with host only', () => {
       config.email = { services: { ses: { host: 'ses.host.com' } } };
       expect(() => configSchema.validate(config)).toThrowErrorMatchingInlineSnapshot(
-        `"[email]: Email configuration requires both services.ses.host and services.ses.port to be specified"`
+        `"[email.services.ses.port]: expected value of type [number] but got [undefined]"`
       );
     });
 
     test('validates ses config with port only', () => {
       config.email = { services: { ses: { port: 1 } } };
       expect(() => configSchema.validate(config)).toThrowErrorMatchingInlineSnapshot(
-        `"[email]: Email configuration requires both services.ses.host and services.ses.port to be specified"`
+        `"[email.services.ses.host]: expected value of type [string] but got [undefined]"`
       );
     });
 
@@ -323,6 +323,43 @@ describe('config validation', () => {
       expect(result.email?.services?.ses).toEqual({ host: 'ses.host.com', port: 1 });
     });
   });
+
+  describe('email.services.enabled', () => {
+    const config: Record<string, unknown> = {};
+    test('validates email config with empty enabled services', () => {
+      config.email = { services: { enabled: [] } };
+      expect(() => configSchema.validate(config)).toThrowErrorMatchingInlineSnapshot(
+        `"[email.services.enabled]: array size is [0], but cannot be smaller than [1]"`
+      );
+    });
+
+    test('validates email config with enabled services', () => {
+      config.email = { services: { enabled: ['elastic-cloud', 'amazon-ses'] } };
+      const result = configSchema.validate(config);
+      expect(result.email?.services?.enabled).toEqual(['elastic-cloud', 'amazon-ses']);
+    });
+
+    test('validates email config with unexistend service', () => {
+      config.email = { services: { enabled: ['fake-service'] } };
+      expect(() => configSchema.validate(config)).toThrowErrorMatchingInlineSnapshot(`
+        "[email.services.enabled.0]: types that failed validation:
+        - [email.services.enabled.0.0]: expected value to equal [google-mail]
+        - [email.services.enabled.0.1]: expected value to equal [microsoft-exchange]
+        - [email.services.enabled.0.2]: expected value to equal [microsoft-outlook]
+        - [email.services.enabled.0.3]: expected value to equal [amazon-ses]
+        - [email.services.enabled.0.4]: expected value to equal [elastic-cloud]
+        - [email.services.enabled.0.5]: expected value to equal [other]
+        - [email.services.enabled.0.6]: expected value to equal [*]"
+      `);
+    });
+
+    test('validates enabled services but no ses service', () => {
+      config.email = { services: { enabled: ['google-mail', 'amazon-ses'] } };
+      const result = configSchema.validate(config);
+      expect(result.email?.services?.enabled).toEqual(['google-mail', 'amazon-ses']);
+      expect(result.email?.services?.ses).toBeUndefined();
+    });
+  });
 });
 
 // object creator that ensures we can create a property named __proto__ on an

x-pack/platform/plugins/shared/actions/server/config.ts

@@ -125,22 +125,43 @@ export const configSchema = schema.object({
       {
         domain_allowlist: schema.maybe(schema.arrayOf(schema.string())),
         services: schema.maybe(
-          schema.object({
+          schema.object(
-            ses: schema.object({
+            {
-              host: schema.maybe(schema.string({ minLength: 1 })),
+              enabled: schema.maybe(
-              port: schema.maybe(schema.number({ min: 1, max: 65535 })),
+                schema.arrayOf(
-            }),
+                  schema.oneOf([
-          })
+                    schema.literal('google-mail'),
+                    schema.literal('microsoft-exchange'),
+                    schema.literal('microsoft-outlook'),
+                    schema.literal('amazon-ses'),
+                    schema.literal('elastic-cloud'),
+                    schema.literal('other'),
+                    schema.literal('*'),
+                  ]),
+                  { minSize: 1 }
+                )
+              ),
+              ses: schema.maybe(
+                schema.object({
+                  host: schema.string({ minLength: 1 }),
+                  port: schema.number({ min: 1, max: 65535 }),
+                })
+              ),
+            },
+            {
+              validate: (obj) => {
+                if (obj && Object.keys(obj).length === 0) {
+                  return 'email.services.enabled or email.services.ses must be defined';
+                }
+              },
+            }
+          )
         ),
       },
       {
         validate: (obj) => {
-          if (!obj.domain_allowlist && !obj.services?.ses.host && !obj.services?.ses.port) {
+          if (obj && Object.keys(obj).length === 0) {
-            return 'Email configuration requires either domain_allowlist or services.ses to be specified';
+            return 'email.domain_allowlist or email.services must be defined';
-          }
-
-          if (obj.services?.ses && (!obj.services.ses.host || !obj.services.ses.port)) {
-            return 'Email configuration requires both services.ses.host and services.ses.port to be specified';
           }
         },
       }

x-pack/platform/plugins/shared/actions/server/index.ts

@@ -50,7 +50,7 @@ export type { ServiceParams } from './sub_action_framework/types';
 export const config: PluginConfigDescriptor<ActionsConfig> = {
   schema: configSchema,
   exposeToBrowser: {
-    email: { domain_allowlist: true },
+    email: { domain_allowlist: true, services: { enabled: true } },
     webhook: { ssl: { pfx: { enabled: true } } },
   },
 };

x-pack/platform/plugins/shared/stack_connectors/common/email/constants.ts

@@ -0,0 +1,15 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+export const serviceParamValueToKbnSettingMap = {
+  gmail: 'google-mail',
+  outlook365: 'microsoft-outlook',
+  ses: 'amazon-ses',
+  elastic_cloud: 'elastic-cloud',
+  exchange_server: 'microsoft-exchange',
+  other: 'other',
+} as const;

x-pack/platform/plugins/shared/stack_connectors/public/connector_types/email/email.test.tsx

@@ -8,7 +8,7 @@
 import { TypeRegistry } from '@kbn/triggers-actions-ui-plugin/public/application/type_registry';
 import { registerConnectorTypes } from '..';
 import type { ActionTypeModel as ConnectorTypeModel } from '@kbn/triggers-actions-ui-plugin/public/types';
-import { getEmailServices } from './email';
+import { emailServices, getEmailServices } from './email';
 import {
   ValidatedEmail,
   InvalidEmailReason,
@@ -17,6 +17,7 @@ import {
 } from '@kbn/actions-plugin/common';
 import { experimentalFeaturesMock } from '../../mocks';
 import { ExperimentalFeaturesService } from '../../common/experimental_features_service';
+import { serviceParamValueToKbnSettingMap } from '../../../common/email/constants';
 
 const CONNECTOR_TYPE_ID = '.email';
 let connectorTypeModel: ConnectorTypeModel;
@@ -65,14 +66,65 @@ describe('connectorTypeRegistry.get() works', () => {
 
 describe('getEmailServices', () => {
   test('should return elastic cloud service if isCloudEnabled is true', () => {
-    const services = getEmailServices(true);
+    const services = getEmailServices(true, ['*']);
     expect(services.find((service) => service.value === 'elastic_cloud')).toBeTruthy();
   });
 
   test('should not return elastic cloud service if isCloudEnabled is false', () => {
-    const services = getEmailServices(false);
+    const services = getEmailServices(false, ['*']);
     expect(services.find((service) => service.value === 'elastic_cloud')).toBeFalsy();
   });
+
+  test('should return all services if enabledEmailsServices is *', () => {
+    const services = getEmailServices(true, ['*']);
+    expect(services).toEqual(emailServices);
+  });
+
+  test('should return only specified services if enabledEmailsServices is not empty', () => {
+    const services = getEmailServices(true, [
+      serviceParamValueToKbnSettingMap.gmail,
+      serviceParamValueToKbnSettingMap.outlook365,
+    ]);
+
+    expect(services).toEqual([
+      {
+        ['kbn-setting-value']: 'google-mail',
+        text: 'Gmail',
+        value: 'gmail',
+      },
+      {
+        ['kbn-setting-value']: 'microsoft-outlook',
+        text: 'Outlook',
+        value: 'outlook365',
+      },
+    ]);
+  });
+
+  test('should return enabled services and the current service if specified', () => {
+    const services = getEmailServices(
+      true,
+      [serviceParamValueToKbnSettingMap.gmail, serviceParamValueToKbnSettingMap.outlook365],
+      serviceParamValueToKbnSettingMap.other
+    );
+
+    expect(services).toEqual([
+      {
+        ['kbn-setting-value']: 'google-mail',
+        text: 'Gmail',
+        value: 'gmail',
+      },
+      {
+        ['kbn-setting-value']: 'microsoft-outlook',
+        text: 'Outlook',
+        value: 'outlook365',
+      },
+      {
+        ['kbn-setting-value']: 'other',
+        text: 'Other',
+        value: 'other',
+      },
+    ]);
+  });
 });
 
 describe('action params validation', () => {

x-pack/platform/plugins/shared/stack_connectors/public/connector_types/email/email.tsx

@@ -16,50 +16,76 @@ import type {
 } from '@kbn/triggers-actions-ui-plugin/public/types';
 import { EmailActionParams, EmailConfig, EmailSecrets } from '../types';
 import { RegistrationServices } from '..';
+import { serviceParamValueToKbnSettingMap as emailKbnSettings } from '../../../common/email/constants';
 
-const emailServices: EuiSelectOption[] = [
+export const emailServices: Array<EuiSelectOption & { 'kbn-setting-value': string }> = [
   {
     text: i18n.translate('xpack.stackConnectors.components.email.gmailServerTypeLabel', {
       defaultMessage: 'Gmail',
     }),
     value: 'gmail',
+    ['kbn-setting-value']: emailKbnSettings.gmail,
   },
   {
     text: i18n.translate('xpack.stackConnectors.components.email.outlookServerTypeLabel', {
       defaultMessage: 'Outlook',
     }),
     value: 'outlook365',
+    ['kbn-setting-value']: emailKbnSettings.outlook365,
   },
   {
     text: i18n.translate('xpack.stackConnectors.components.email.amazonSesServerTypeLabel', {
       defaultMessage: 'Amazon SES',
     }),
     value: 'ses',
+    ['kbn-setting-value']: emailKbnSettings.ses,
   },
   {
     text: i18n.translate('xpack.stackConnectors.components.email.elasticCloudServerTypeLabel', {
       defaultMessage: 'Elastic Cloud',
     }),
     value: 'elastic_cloud',
+    ['kbn-setting-value']: emailKbnSettings.elastic_cloud,
   },
   {
     text: i18n.translate('xpack.stackConnectors.components.email.exchangeServerTypeLabel', {
       defaultMessage: 'MS Exchange Server',
     }),
     value: 'exchange_server',
+    ['kbn-setting-value']: emailKbnSettings.exchange_server,
   },
   {
     text: i18n.translate('xpack.stackConnectors.components.email.otherServerTypeLabel', {
       defaultMessage: 'Other',
     }),
     value: 'other',
+    ['kbn-setting-value']: emailKbnSettings.other,
   },
 ];
 
-export function getEmailServices(isCloudEnabled: boolean) {
+// Return the current service regardless of its enabled state to allow users to:
-  return isCloudEnabled
+// 1. View the current service in the dropdown UI
+// 2. Update the service configuration if needed
+// Note: The connector update endpoint will reject updates where the service
+// remains unchanged but is disabled.
+export function getEmailServices(
+  isCloudEnabled: boolean,
+  enabledEmailsServices: string[],
+  currentService?: string
+): Array<EuiSelectOption & { 'kbn-setting-value': string }> {
+  const allEmailServices = isCloudEnabled
     ? emailServices
     : emailServices.filter((service) => service.value !== 'elastic_cloud');
+
+  if (enabledEmailsServices.includes('*')) {
+    return allEmailServices;
+  }
+
+  return allEmailServices.filter(
+    (service) =>
+      service.value === currentService ||
+      enabledEmailsServices.includes(service['kbn-setting-value'])
+  );
 }
 
 export function getConnectorType(

x-pack/platform/plugins/shared/stack_connectors/public/connector_types/email/email_connector.test.tsx

@@ -7,22 +7,34 @@
 
 import React, { Suspense } from 'react';
 import { mountWithIntl } from '@kbn/test-jest-helpers';
-import { act } from '@testing-library/react';
+import { act, screen, within } from '@testing-library/react';
 import userEvent from '@testing-library/user-event';
 import { useKibana } from '@kbn/triggers-actions-ui-plugin/public';
 import EmailActionConnectorFields from './email_connector';
-import * as hooks from './use_email_config';
 import {
   AppMockRenderer,
   ConnectorFormTestProvider,
   createAppMockRenderer,
   waitForComponentToUpdate,
 } from '../lib/test_utils';
+import { getServiceConfig } from './api';
 
 jest.mock('@kbn/triggers-actions-ui-plugin/public/common/lib/kibana');
 const useKibanaMock = useKibana as jest.Mocked<typeof useKibana>;
 
+jest.mock('./api', () => {
+  return {
+    getServiceConfig: jest.fn(),
+  };
+});
+
 describe('EmailActionConnectorFields', () => {
+  const enabledEmailServices = ['*'];
+
+  afterEach(() => {
+    jest.clearAllMocks();
+  });
+
   test('all connector fields are rendered', async () => {
     const actionConnector = {
       secrets: {
@@ -170,12 +182,11 @@ describe('EmailActionConnectorFields', () => {
   });
 
   test('host, port and secure fields should be disabled when service field is set to well known service', async () => {
-    const getEmailServiceConfig = jest
+    (getServiceConfig as jest.Mock).mockResolvedValue({
-      .fn()
+      host: 'https://example.com',
-      .mockResolvedValue({ host: 'https://example.com', port: 80, secure: false });
+      port: 80,
-    jest
+      secure: false,
-      .spyOn(hooks, 'useEmailConfig')
+    });
-      .mockImplementation(() => ({ isLoading: false, getEmailServiceConfig }));
 
     const actionConnector = {
       secrets: {
@@ -214,12 +225,11 @@ describe('EmailActionConnectorFields', () => {
   });
 
   test('host, port and secure fields should not be disabled when service field is set to other', async () => {
-    const getEmailServiceConfig = jest
+    (getServiceConfig as jest.Mock).mockResolvedValue({
-      .fn()
+      host: 'https://example.com',
-      .mockResolvedValue({ host: 'https://example.com', port: 80, secure: false });
+      port: 80,
-    jest
+      secure: false,
-      .spyOn(hooks, 'useEmailConfig')
+    });
-      .mockImplementation(() => ({ isLoading: false, getEmailServiceConfig }));
 
     const actionConnector = {
       secrets: {
@@ -292,7 +302,7 @@ describe('EmailActionConnectorFields', () => {
         <ConnectorFormTestProvider
           connector={actionConnector}
           onSubmit={onSubmit}
-          connectorServices={{ validateEmailAddresses }}
+          connectorServices={{ validateEmailAddresses, enabledEmailServices }}
         >
           <EmailActionConnectorFields
             readOnly={false}
@@ -356,7 +366,7 @@ describe('EmailActionConnectorFields', () => {
         <ConnectorFormTestProvider
           connector={actionConnector}
           onSubmit={onSubmit}
-          connectorServices={{ validateEmailAddresses }}
+          connectorServices={{ validateEmailAddresses, enabledEmailServices }}
         >
           <EmailActionConnectorFields
             readOnly={false}
@@ -415,7 +425,7 @@ describe('EmailActionConnectorFields', () => {
         <ConnectorFormTestProvider
           connector={actionConnector}
           onSubmit={onSubmit}
-          connectorServices={{ validateEmailAddresses }}
+          connectorServices={{ validateEmailAddresses, enabledEmailServices }}
         >
           <EmailActionConnectorFields
             readOnly={false}
@@ -463,7 +473,7 @@ describe('EmailActionConnectorFields', () => {
         <ConnectorFormTestProvider
           connector={actionConnector}
           onSubmit={onSubmit}
-          connectorServices={{ validateEmailAddresses }}
+          connectorServices={{ validateEmailAddresses, enabledEmailServices }}
         >
           <EmailActionConnectorFields
             readOnly={false}
@@ -509,7 +519,7 @@ describe('EmailActionConnectorFields', () => {
         <ConnectorFormTestProvider
           connector={actionConnector}
           onSubmit={onSubmit}
-          connectorServices={{ validateEmailAddresses }}
+          connectorServices={{ validateEmailAddresses, enabledEmailServices }}
         >
           <EmailActionConnectorFields
             readOnly={false}
@@ -554,7 +564,7 @@ describe('EmailActionConnectorFields', () => {
         <ConnectorFormTestProvider
           connector={actionConnector}
           onSubmit={onSubmit}
-          connectorServices={{ validateEmailAddresses }}
+          connectorServices={{ validateEmailAddresses, enabledEmailServices }}
         >
           <Suspense fallback={null}>
             <EmailActionConnectorFields
@@ -603,7 +613,7 @@ describe('EmailActionConnectorFields', () => {
           <ConnectorFormTestProvider
             connector={actionConnector}
             onSubmit={onSubmit}
-            connectorServices={{ validateEmailAddresses }}
+            connectorServices={{ validateEmailAddresses, enabledEmailServices }}
           >
             <EmailActionConnectorFields
               readOnly={false}
@@ -649,7 +659,7 @@ describe('EmailActionConnectorFields', () => {
         <ConnectorFormTestProvider
           connector={actionConnector}
           onSubmit={onSubmit}
-          connectorServices={{ validateEmailAddresses }}
+          connectorServices={{ validateEmailAddresses, enabledEmailServices }}
         >
           <EmailActionConnectorFields
             readOnly={false}
@@ -689,3 +699,102 @@ describe('EmailActionConnectorFields', () => {
     });
   });
 });
+
+describe('when not all email services are enabled', () => {
+  const enabledEmailServices = ['amazon-ses', 'other', 'microsoft-exchange'];
+  let appMockRenderer: AppMockRenderer;
+  const onSubmit = jest.fn();
+  const validateEmailAddresses = jest.fn();
+
+  beforeEach(() => {
+    appMockRenderer = createAppMockRenderer();
+    validateEmailAddresses.mockReturnValue([{ valid: true }]);
+    (getServiceConfig as jest.Mock).mockResolvedValue({
+      host: 'https://example.com',
+      port: 2255,
+      secure: true,
+    });
+  });
+
+  afterEach(() => {
+    jest.clearAllMocks();
+  });
+
+  it('only allows enabled services to be selected only', async () => {
+    const actionConnector = {
+      secrets: {
+        user: 'user',
+        password: 'pass',
+      },
+      id: 'test',
+      actionTypeId: '.email',
+      name: 'email',
+      config: {},
+      isDeprecated: false,
+    };
+
+    appMockRenderer.render(
+      <ConnectorFormTestProvider
+        connector={actionConnector}
+        onSubmit={onSubmit}
+        connectorServices={{ validateEmailAddresses, enabledEmailServices }}
+      >
+        <EmailActionConnectorFields
+          readOnly={false}
+          isEdit={false}
+          registerPreSubmitValidator={() => {}}
+        />
+      </ConnectorFormTestProvider>
+    );
+
+    const emailServiceSelect = screen.getByTestId('emailServiceSelectInput') as HTMLSelectElement;
+
+    const options = within(emailServiceSelect).getAllByRole('option');
+    expect(options).toHaveLength(3);
+    expect(options[0].textContent).toBe('Amazon SES');
+    expect(options[1].textContent).toBe('MS Exchange Server');
+    expect(options[2].textContent).toBe('Other');
+  });
+
+  it('adds the current connector service to the service list even if not enabled', async () => {
+    const actionConnector = {
+      secrets: {
+        user: 'user',
+        password: 'pass',
+      },
+      id: 'test',
+      actionTypeId: '.email',
+      name: 'email',
+      config: {
+        from: 'test@test.com',
+        test: 'test',
+        service: 'gmail', // not enabled
+        secure: true,
+      },
+      isDeprecated: false,
+    };
+
+    appMockRenderer.render(
+      <ConnectorFormTestProvider
+        connector={actionConnector}
+        onSubmit={onSubmit}
+        connectorServices={{ validateEmailAddresses, enabledEmailServices }}
+      >
+        <EmailActionConnectorFields
+          readOnly={false}
+          isEdit={false}
+          registerPreSubmitValidator={() => {}}
+        />
+      </ConnectorFormTestProvider>
+    );
+
+    const emailServiceSelect = screen.getByTestId('emailServiceSelectInput') as HTMLSelectElement;
+
+    const options = within(emailServiceSelect).getAllByRole('option');
+    expect(options).toHaveLength(4);
+    expect(options[0].textContent).toBe('Gmail');
+    expect(options[1].textContent).toBe('Amazon SES');
+    expect(options[2].textContent).toBe('MS Exchange Server');
+    expect(options[3].textContent).toBe('Other');
+  });
+});

x-pack/platform/plugins/shared/stack_connectors/public/connector_types/email/email_connector.tsx

@@ -5,7 +5,7 @@
  * 2.0.
  */
 
-import React, { lazy, useEffect, useMemo } from 'react';
+import React, { lazy, useEffect, useMemo, useRef } from 'react';
 import { isEmpty } from 'lodash';
 import { EuiFlexItem, EuiFlexGroup, EuiTitle, EuiSpacer } from '@elastic/eui';
 import { FormattedMessage } from '@kbn/i18n-react';
@@ -102,7 +102,7 @@ export const EmailActionConnectorFields: React.FunctionComponent<ActionConnector
     notifications: { toasts },
   } = useKibana().services;
   const {
-    services: { validateEmailAddresses },
+    services: { validateEmailAddresses, enabledEmailServices },
   } = useConnectorContext();
 
   const form = useFormContext();
@@ -119,6 +119,15 @@ export const EmailActionConnectorFields: React.FunctionComponent<ActionConnector
   const { service = null, hasAuth = false } = config ?? {};
   const disableServiceConfig = shouldDisableEmailConfiguration(service);
   const { isLoading, getEmailServiceConfig } = useEmailConfig({ http, toasts });
+  const initialService = useRef(service);
+  if (!initialService.current && service) {
+    initialService.current = service;
+  }
+  const availableEmailServices = getEmailServices(
+    isCloud,
+    enabledEmailServices,
+    initialService.current
+  );
 
   useEffect(() => {
     async function fetchConfig() {
@@ -173,7 +182,7 @@ export const EmailActionConnectorFields: React.FunctionComponent<ActionConnector
             componentProps={{
               euiFieldProps: {
                 'data-test-subj': 'emailServiceSelectInput',
-                options: getEmailServices(isCloud),
+                options: availableEmailServices,
                 fullWidth: true,
                 hasNoInitialSelection: true,
                 disabled: readOnly || isLoading,

x-pack/platform/plugins/shared/stack_connectors/public/connector_types/lib/test_utils.tsx

@@ -74,6 +74,7 @@ const FormTestProviderComponent: React.FC<FormTestProviderProps> = ({
   connectorServices = {
     validateEmailAddresses: jest.fn(),
     isWebhookSslWithPfxEnabled: true,
+    enabledEmailServices: ['*'],
   },
 }) => {
   const { form } = useForm({ defaultValue });

x-pack/platform/plugins/shared/stack_connectors/server/connector_types/email/index.test.ts

@@ -34,6 +34,7 @@ import { getConnectorType } from '.';
 import type { ValidateEmailAddressesOptions } from '@kbn/actions-plugin/common';
 import { ActionExecutionSourceType } from '@kbn/actions-plugin/server/types';
 import { AdditionalEmailServices } from '../../../common';
+import { serviceParamValueToKbnSettingMap } from '../../../common/email/constants';
 
 const sendEmailMock = sendEmail as jest.Mock;
 
@@ -503,6 +504,75 @@ describe('params validation', () => {
       );
     }).not.toThrowError();
   });
+
+  test('error when using a service that is not enabled', async () => {
+    const configUtils = actionsConfigMock.create();
+    configUtils.getEnabledEmailServices = jest
+      .fn()
+      .mockReturnValue([
+        serviceParamValueToKbnSettingMap.gmail,
+        serviceParamValueToKbnSettingMap.elastic_cloud,
+      ]);
+
+    expect(() =>
+      validateConfig(
+        connectorType,
+        {
+          service: 'other',
+          from: 'bob@example.com',
+          host: 'wrong-host',
+          port: 123,
+          secure: true,
+          hasAuth: true,
+        },
+        { configurationUtilities: configUtils }
+      )
+    ).toThrowErrorMatchingInlineSnapshot(
+      `"error validating action type config: [service]: \\"other\\" is not in the list of enabled email services: google-mail,elastic-cloud"`
+    );
+  });
+
+  test('no error using enabled services = *', async () => {
+    const configUtils = actionsConfigMock.create();
+    configUtils.getEnabledEmailServices = jest.fn().mockReturnValue(['*']);
+
+    expect(() =>
+      validateConfig(
+        connectorType,
+        {
+          service: 'other',
+          from: 'bob@example.com',
+          host: 'wrong-host',
+          port: 123,
+          secure: true,
+          hasAuth: true,
+        },
+        { configurationUtilities: configUtils }
+      )
+    ).not.toThrowError();
+  });
+
+  test('does not throw when fetching service enabled in config', () => {
+    const configUtils = actionsConfigMock.create();
+    configUtils.getEnabledEmailServices = jest
+      .fn()
+      .mockReturnValue([serviceParamValueToKbnSettingMap.elastic_cloud]);
+
+    expect(() =>
+      validateConfig(
+        connectorType,
+        {
+          service: 'elastic_cloud',
+          from: 'bob@example.com',
+          host: 'dockerhost',
+          port: 10025,
+          secure: false,
+          hasAuth: false,
+        },
+        { configurationUtilities: configUtils }
+      )
+    ).not.toThrowError();
+  });
 });
 
 describe('execute()', () => {

x-pack/platform/plugins/shared/stack_connectors/server/connector_types/email/index.ts

@@ -34,6 +34,7 @@ import { AdditionalEmailServices } from '../../../common';
 import type { SendEmailOptions, Transport } from './send_email';
 import { sendEmail, JSON_TRANSPORT_SERVICE } from './send_email';
 import { portSchema } from '../lib/schemas';
+import { serviceParamValueToKbnSettingMap as emailKbnSettings } from '../../../common/email/constants';
 
 export type EmailConnectorType = ConnectorType<
   ConnectorTypeConfigType,
@@ -82,6 +83,20 @@ function validateConfig(
   const config = configObject;
   const { configurationUtilities } = validatorServices;
   const awsSesConfig = configurationUtilities.getAwsSesConfig();
+  const enabledServices = configurationUtilities.getEnabledEmailServices();
+
+  const serviceKey = config.service as keyof typeof emailKbnSettings;
+  if (
+    !enabledServices.includes('*') &&
+    config.service in emailKbnSettings &&
+    !enabledServices.includes(emailKbnSettings[serviceKey])
+  ) {
+    throw new Error(
+      `[service]: "${
+        emailKbnSettings[serviceKey]
+      }" is not in the list of enabled email services: ${enabledServices.join(',')}`
+    );
+  }
 
   const emails = [config.from];
   const invalidEmailsMessage = configurationUtilities.validateEmailAddresses(emails);

x-pack/platform/plugins/shared/triggers_actions_ui/public/application/components/test_utils.tsx

@@ -24,7 +24,7 @@ const FormTestProviderComponent: React.FC<FormTestProviderProps> = ({
   children,
   defaultValue,
   onSubmit,
-  connectorServices = { validateEmailAddresses: jest.fn() },
+  connectorServices = { validateEmailAddresses: jest.fn(), enabledEmailServices: ['*'] },
 }) => {
   const { form } = useForm({ defaultValue });
   const { submit } = form;

x-pack/platform/plugins/shared/triggers_actions_ui/public/application/connectors_app.tsx

@@ -90,11 +90,15 @@ export const App = ({ deps }: { deps: TriggersAndActionsUiServices }) => {
 
 export const AppWithoutRouter = ({ sectionsRegex }: { sectionsRegex: string }) => {
   const {
-    actions: { validateEmailAddresses, isWebhookSslWithPfxEnabled },
+    actions: { validateEmailAddresses, enabledEmailServices, isWebhookSslWithPfxEnabled },
   } = useKibana().services;
 
   return (
-    <ConnectorProvider value={{ services: { validateEmailAddresses, isWebhookSslWithPfxEnabled } }}>
+    <ConnectorProvider
+      value={{
+        services: { validateEmailAddresses, enabledEmailServices, isWebhookSslWithPfxEnabled },
+      }}
+    >
       <Routes>
         <Route
           path={`/:section(${sectionsRegex})`}

x-pack/platform/plugins/shared/triggers_actions_ui/public/application/internal/shareable_components_sandbox/rules_list_sandbox.tsx

@@ -14,13 +14,13 @@ const style = {
 
 export const RulesListSandbox = () => {
   const {
-    services: { validateEmailAddresses },
+    services: { validateEmailAddresses, enabledEmailServices },
   } = useConnectorContext();
 
   return (
     <div style={style}>
       {getRulesListLazy({
-        connectorServices: { validateEmailAddresses },
+        connectorServices: { validateEmailAddresses, enabledEmailServices },
         rulesListProps: {},
       })}
     </div>

x-pack/platform/plugins/shared/triggers_actions_ui/public/application/rules_app.tsx

@@ -120,12 +120,12 @@ export const App = ({ deps }: { deps: TriggersAndActionsUiServices }) => {
 
 export const AppWithoutRouter = ({ sectionsRegex }: { sectionsRegex: string }) => {
   const {
-    actions: { validateEmailAddresses },
+    actions: { validateEmailAddresses, enabledEmailServices },
     application: { navigateToApp },
   } = useKibana().services;
 
   return (
-    <ConnectorProvider value={{ services: { validateEmailAddresses } }}>
+    <ConnectorProvider value={{ services: { validateEmailAddresses, enabledEmailServices } }}>
       <Routes>
         <Route
           exact

x-pack/platform/plugins/shared/triggers_actions_ui/public/common/lib/kibana/kibana_react.mock.ts

@@ -27,7 +27,7 @@ export const createStartServicesMock = (): TriggersAndActionsUiServices => {
   const licensingPluginMock = licensingMock.createStart();
   return {
     ...core,
-    actions: { validateEmailAddresses: jest.fn() },
+    actions: { validateEmailAddresses: jest.fn(), enabledEmailServices: ['*'] },
     ruleTypeRegistry: {
       has: jest.fn(),
       register: jest.fn(),

x-pack/platform/plugins/shared/triggers_actions_ui/public/mocks.ts

@@ -49,7 +49,7 @@ import { getUntrackModalLazy } from './common/get_untrack_modal';
 function createStartMock(): TriggersAndActionsUIPublicPluginStart {
   const actionTypeRegistry = new TypeRegistry<ActionTypeModel>();
   const ruleTypeRegistry = new TypeRegistry<RuleTypeModel>();
-  const connectorServices = { validateEmailAddresses: jest.fn() };
+  const connectorServices = { validateEmailAddresses: jest.fn(), enabledEmailServices: ['*'] };
   return {
     actionTypeRegistry,
     ruleTypeRegistry,

x-pack/platform/plugins/shared/triggers_actions_ui/public/plugin.ts

@@ -205,6 +205,7 @@ export class Plugin
     const ruleTypeRegistry = this.ruleTypeRegistry;
     this.connectorServices = {
       validateEmailAddresses: plugins.actions.validateEmailAddresses,
+      enabledEmailServices: plugins.actions.enabledEmailServices,
     };
 
     ExperimentalFeaturesService.init({ experimentalFeatures: this.experimentalFeatures });

x-pack/platform/plugins/shared/triggers_actions_ui/public/types.ts

@@ -400,6 +400,7 @@ export interface SnoozeSchedule {
 
 export interface ConnectorServices {
   validateEmailAddresses: ActionsPublicPluginSetup['validateEmailAddresses'];
+  enabledEmailServices: ActionsPublicPluginSetup['enabledEmailServices'];
   isWebhookSslWithPfxEnabled?: ActionsPublicPluginSetup['isWebhookSslWithPfxEnabled'];
 }
 

x-pack/test/functional_with_es_ssl/apps/triggers_actions_ui/connectors/with_email_services_enabled_kbn_config/config.ts

@@ -0,0 +1,30 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+export const emailEnabledServices = ['google-mail', 'amazon-ses'];
+
+import { FtrConfigProviderContext } from '@kbn/test';
+
+export default async function ({ readConfigFile }: FtrConfigProviderContext) {
+  const baseConfig = await readConfigFile(require.resolve('../../../../config.base.ts'));
+
+  return {
+    ...baseConfig.getAll(),
+    testFiles: [require.resolve('.')],
+    junit: {
+      reportName:
+        'Chrome X-Pack UI Functional Tests with ES SSL - Email services enabled Kibana config',
+    },
+    kbnTestServer: {
+      ...baseConfig.getAll().kbnTestServer,
+      serverArgs: [
+        ...baseConfig.getAll().kbnTestServer.serverArgs,
+        `--xpack.actions.email.services.enabled=${JSON.stringify(emailEnabledServices)}`,
+      ],
+    },
+  };
+}

x-pack/test/functional_with_es_ssl/apps/triggers_actions_ui/connectors/with_email_services_enabled_kbn_config/email.ts

@@ -0,0 +1,33 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import expect from '@kbn/expect';
+import { FtrProviderContext } from '../../../../ftr_provider_context';
+
+export default ({ getPageObjects, getService }: FtrProviderContext) => {
+  const testSubjects = getService('testSubjects');
+  const pageObjects = getPageObjects(['common', 'triggersActionsUI', 'header']);
+  const find = getService('find');
+
+  describe('Email - with multiple enabled services config', () => {
+    beforeEach(async () => {
+      await pageObjects.common.navigateToApp('triggersActionsConnectors');
+    });
+
+    it('should use the kibana config for enabled services', async () => {
+      await pageObjects.triggersActionsUI.clickCreateConnectorButton();
+      await testSubjects.click('.email-card');
+      const emailServicesOptions = await find.allByCssSelector(
+        '[data-test-subj="emailServiceSelectInput"] > option'
+      );
+      expect(emailServicesOptions.length).to.be(3);
+      expect(await emailServicesOptions[0].getVisibleText()).to.be(' '); // empty option
+      expect(await emailServicesOptions[1].getVisibleText()).to.be('Gmail');
+      expect(await emailServicesOptions[2].getVisibleText()).to.be('Amazon SES');
+    });
+  });
+};

x-pack/test/functional_with_es_ssl/apps/triggers_actions_ui/connectors/with_email_services_enabled_kbn_config/index.ts

@@ -0,0 +1,21 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import type { FtrProviderContext } from '@kbn/test-suites-xpack-platform/alerting_api_integration/common/ftr_provider_context';
+import {
+  buildUp,
+  tearDown,
+} from '@kbn/test-suites-xpack-platform/alerting_api_integration/spaces_only/tests/helpers';
+
+export default function actionsTests({ loadTestFile, getService }: FtrProviderContext) {
+  describe('Connectors with email services enabled Kibana config', () => {
+    before(async () => buildUp(getService));
+    after(async () => tearDown(getService));
+
+    loadTestFile(require.resolve('./email'));
+  });
+}