Add cloud email connector section

docs/user/alerting/action-types/email.asciidoc

@@ -87,13 +87,26 @@ You configure the email action to send emails using the connector form.
 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 action 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
+
+Use the following connector settings to send email from Elastic Cloud: 
+
+* Sender: `noreply@watcheralert.found.io`
+* Host: `dockerhost`
+* Port: `10025`
+* Secure: turn off
+* Authentication: turn off
+
 [float]
 [[gmail]]
 ===== Sending email from Gmail