anchor.diff:              host: smtp.gmail.com
               port: 587
               user: <username>
  -            password: <password>
  +--------------------------------------------------
  +
  +In order to store the account SMTP password, use the keystore command
  +(see {ref}/secure-settings.html[secure settings])
  +
  +[source,yaml]
  +--------------------------------------------------
  +bin/elasticsearch-keystore xpack.notification.email.account.gmail_account.smtp.secure_password
   --------------------------------------------------
   
   If you get an authentication error that indicates that you need to continue the
  
positive.code:             host: <your exchange server>
              port: 587
              user: <email address of service account> <2>
              password: <password>
  --------------------------------------------------
  <1> Some organizations configure Exchange to validate that the `from` field is a
      valid local email account.
  
negative.code:             host: smtp-mail.outlook.com
              port: 587
              user: <email.address>
  --------------------------------------------------
  
  In order to store the account SMTP password, use the keystore command
  (see {ref}/secure-settings.html[secure settings])
  
  [source,yaml]
  --------------------------------------------------
  bin/elasticsearch-keystore xpack.notification.email.account.outlook_account.smtp.secure_password
  --------------------------------------------------
  
  
  When sending emails, you have to provide a from address, either a default one
  in your account configuration or as part of the email action in the watch.
  