* ran...@skurelabs.com <ran...@skurelabs.com>: > I have configured postfix, dovecot with ssl from letsnecrypt. It > works fine, but gets rejected when sending mails to gmail, with following > rejection message:
And have you READ the rejection message: > Our system has detected that this message does not meet IPv6 sending > guidelines regarding PTR records and authentication. Please review > https://support.google.com/mail/?p=IPv6AuthError for more information I'd recommend looking at the PTR record first. $ host 2a01:4f9:c012:7b57::1 Host 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.7.5.b.7.2.1.0.c.9.f.4.0.1.0.a.2.ip6.arpa not found: 3(NXDOMAIN) -- Ralf Hildebrandt Charité - Universitätsmedizin Berlin Geschäftsbereich IT | Abteilung Netzwerk Campus Benjamin Franklin (CBF) Haus I | 1. OG | Raum 105 Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 ralf.hildebra...@charite.de https://www.charite.de
