Customs email headers and/or subjects tags


To be able to sort automatically notification emails sent by Discourse, it would be great if they could have customs headers (or a subject tag) based on the message’s content/content:

For example, here is a list of headers Bugzilla sends with each notification email:

X-Bugzilla-Reason: CC AssignedTo
X-Bugzilla-Type: dep_changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Classification: Other
X-Bugzilla-ID: 1014331
X-Bugzilla-Component: Server Operations
X-Bugzilla-Version: other
X-Bugzilla-Severity: normal
X-Bugzilla-Status: RESOLVED
X-Bugzilla-Resolution: FIXED
X-Bugzilla-Priority: –
X-Bugzilla-Target-Milestone: —
X-Bugzilla-OS: Linux
X-Bugzilla-Changed-Fields: Status Resolution
X-Bugzilla-Changed-Field-Names: bug_status resolution


1 Like

See also our discussion at:

Where we’re hoping to get categories in a header. :smile:

FYI, there is now a category-specific List-Id header sent along with unsubscribe headers, and the ability to add your own generic headers for all notifications with the email custom headers site setting.


For those who are wondering how to set the custom email header, here it is.

  1. Go to your Settings Panel >> Email or use below link, you should replace the domain name with your own.

  2. Search for email custom headers, and set your own. That’s it!