Hi, On Sun, Jul 20, 2025 at 05:48:01PM +0800, Bret Busby wrote: > Perhaps, the List Administrators could find worthwhile, to add a footer to > the mailing list messages, something like > > "To unsubscribe, change your subscription mode, or view the list archive, > see https://lists.debian.org/debian-user/ " > > Simple, but (should be) effective.
In the past the Debian list admins have stated they will not do this, for a couple of reasons. One of the reasons is that altering the content of the message (which would also include any tags added to the subject line) would invalidate any DKIM signature present and make it harder for the message to be delivered. Most mailing lists that change the content by adding subject tags and/or footers also rewrite the From address to be from the list itself, e.g. in that configuration this list would have: From: Bret Busby via Debian User <debian-user@lists.debian.org> The mail would then be signed on behalf of lists.debian.org and would be treated as a new email. Myself I think this was a sad concession that had to be made in the name of user experience and I did change most of the lists I operate to work this way. I don't expect Debian ever would though. Thanks, Andy PS your own email is DKIM-signed by busby.net but the signature is invalid here. It seems likely to me that you have signed too many headers and the list software has added or modified one of them. -- https://bitfolk.com/ -- No-nonsense VPS hosting
