Le vendredi 23 janvier 2026, 17:51:18 heure normale d’Europe centrale Florian Effenberger a écrit : > Hi Luc, >
Hi Florian > > Do you know if these mails are routed through Mimecast, or through > different providers? No, it’s directly our servers -> hotmail-com.olc.protection.outlook.com > Thanks for the feedback! > I didn't try the backport (and therefore the setting) yet, but it's on > my todo. I'll update to Debian 13, but first need to update my Dovecot > configuration. ;-) > > I am still not sure if this is a Mimecast-problem in general, or related > to the specific customer. IMHO they should not hard reject if one of SPF > or DKIM is verified... Well, it sadly didn’t work for Microsoft. I was hoping that this would work since: - it was a lead I didn’t worked on - I was able to reproduce the failure with aboutmy.email, and I never have been able to reproduce the failure with microsoft - your postfix setting fixed the problem with aboutmy.email. Sadly, I still need to work on this problem 😭 -- Luc https://fiat-tux.fr https://luc.frama.io Internet n'est pas compliqué, Internet est ce que vous en faites. _______________________________________________ mailop mailing list [email protected] https://list.mailop.org/listinfo/mailop
