Currently an echo notification email is:
Subject: New notification at Wikitech
You have a new notification.
To control which emails we send you, check your preferences:
https://wikitech.wikimedia.org/wiki/Special:Preferences#mw-prefsection-echo
I would expect at least a link to https://wikitech.wikimedia.org/wiki/Special:Notifications The notification contents should also be included unless there's a good reason not to.
Version: unspecified
Severity: normal