On 2023-06-21, wesley--- via Postfix-users wrote: > Net::SMTP=GLOB(0x56251379d628)<<< 550-Inconsistent/Missing DNS PTR record > (RFC 1912 2.1) (xxx.org) > Net::SMTP=GLOB(0x56251379d628)<<< 550 [2001:550:5a00:4401::1]:45518 > > do you know what this means? does IPv6 cause the issue? > my sender smtp server has the correct A/MX/PTR records by IPv4.
But the log shows an IPv6. Did you check your IPv6 A/MX/PTR records ? And the IP seems to be the gateway. Do you use a VPN ? Check your DNS for this IP from Cogent. _______________________________________________ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
