On Sat, Jan 24, 2026 at 01:11:05PM +0100, Thomas Walter via mailop wrote: > gmail bounces some of our messages because of SPF not passing:
Some, messages, but not all? That sounds like par for the course for the Rube Goldberg contraption that is gmail. > But our SPF records are just fine for that IP? > > https://mxtoolbox.com/SuperTool.aspx?action=spf%3afh-muenster.de%3a185.149.214.63&run=toolpage That *does* point out that the domain has not published a DMARC policy. As noted earlier[1], we have it on good authority that the messages offered to the public from that system are (possibly on purpose) rather non-specific and may in fact not indicate the actual cause of the action taken. Again, it should be relatively easy to cook up a DMARC policy and see if that helps. Yelling in semi-public forums like this one might also yield some value. All the best, Peter [1] https://nxdomain.no/~peter/they_do_not_understand_mail_at_all.html (with special attention to the update dated 2026-01-10) -- Peter N. M. Hansteen, member of the first RFC 1149 implementation team https://nxdomain.no/~peter/blogposts https://nostarch.com/book-of-pf-4th-edition "Remember to set the evil bit on all malicious network traffic" delilah spamd[29949]: 85.152.224.147: disconnected after 42673 seconds. _______________________________________________ mailop mailing list [email protected] https://list.mailop.org/listinfo/mailop
