On 11/25/18 10:43 AM, Lindsay Haisley wrote: > > How does a .forward problem relate to Mailman? Please excuse my > ignorance if this is obvious. I use Courier-MTA and the equivalent > facility is the .courier file, which redirects email. In the case of > Mailman mailing lists, I use the courier-to-mailman.py as a target in a > .courier file to redirect _internally_ into Mailman. Otherwise external > redirection in a .forward file (which is an ancient and venerable > sendmail facility) can (probably will) cause problems if the > redirection is from a "p=reject" domain to a service, such as Gmail, > which honors this.
A .forward normally does not cause issues with DMARC because .forward redirection normally does not transform the message in ways that break DKIM signatures. Thus if the original message was DKIM signed by a domain "aligned" with the From: domain, the forwarded message should still pass DMARC. There is only an issue if the original sender was relying on SPF only to pass DMARC. -- Mark Sapiro <m...@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org https://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: https://mail.python.org/mailman/options/mailman-users/archive%40jab.org
