On 3/5/21 7:46 AM, Markus Grunwald via Mailman-Users wrote: > Hello, > > I set up an announcement mailing list for my men's choir. It went quite > smoothly and seems to work fine. > > The server the-grue.de runs a multi domain postfix setup. The main > domain is the-grue.de, my private domain. I host mails for > maennerchor-kirchseeon.de, too and that's the domain that mailman should > use. > > > Now I wanted to check if there are any problems regarding spam with > mx-tools, so I added p...@tools.mxtoolbox.com to the list and sent a > mail to it using the same E-Mail address that I'm using in this mail. > You can see the result here: > > https://mxtoolbox.com/deliverability/5215ac61-ae11-46b6-90bf-14d71be76ef5 > > Email Deliverability: > Testing 'the-grue.de' against '95.129.55.232' > > So the domain of my e-mail adress is checked against the ip of the > mailing list server which fails, of course.
And what it's is testing is not only if SPF passes (which it does), but also if the domain of the sending server `aligns` with the domain of the From: address. This is a DMARC check and will fail in this case. > I have the test mail attached to this mail. There's something else strange: > > X-Original-To: ankuendigun...@maennerchor-kirchseeon.de > Delivered-To: ankuendigun...@the-grue.de > > Where does the "@the-grue.de" come from? Postfix delivery. > This is the generated file /var/lib/mailman/data/virtual-mailman ... > # STANZA START: ankuendigungen > # CREATED: Thu Feb 18 14:28:43 2021 > ankuendigun...@maennerchor-kirchseeon.de ankuendigungen The above virtual mapping says deliver mail to ankuendigun...@maennerchor-kirchseeon.de to the local address ankuendigungen and postfix appends the local domain. -- 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 To unsubscribe send an email to mailman-users-le...@python.org https://mail.python.org/mailman3/lists/mailman-users.python.org/ Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: https://www.mail-archive.com/mailman-users@python.org/ https://mail.python.org/archives/list/mailman-users@python.org/
