Add email connector info for Elastic Cloud (#91363) (#102673)

* Move content into new location to fix merge conflict

* Add whitelisting callout

docs/management/connectors/action-types/email.asciidoc

@@ -95,13 +95,37 @@ The email connector can send email using many popular SMTP email services.
 
 For more information about configuring the email connector to work with different email systems, refer to:
 
+* <<elasticcloud>>
 * <<gmail>>
 * <<outlook>>
 * <<exchange>>
 * <<amazon-ses>>
 
 For other email servers, you can check the list of well-known services that Nodemailer supports in the JSON file https://github.com/nodemailer/nodemailer/blob/master/lib/well-known/services.json[well-known/services.json].  The properties of the objects in those files &mdash; `host`, `port`, and `secure` &mdash; correspond to the same email connector configuration properties.  A missing `secure` property in the "well-known/services.json" file is considered `false`.  Typically, `port: 465` uses `secure: true`, and `port: 25` and `port: 587` use `secure: false`.
 
+[float]
+[[elasticcloud]]
+==== Sending email from Elastic Cloud
+
+IMPORTANT: These instructions require you to link:{cloud}/ec-watcher.html#ec-watcher-whitelist[whitelist] the email addresses that notifications get sent first.
+
+Use the following connector settings to send email from Elastic Cloud: 
+
+Sender::
+`noreply@watcheralert.found.io`
+
+Host::
+`dockerhost`
+
+Port::
+`10025`
+
+Secure::
+Toggle off
+
+Authentication::
+Toggle off
+
 [float]
 [[gmail]]
 ==== Sending email from Gmail