Hi, > my ISP does not support ipv6 > my service for hosting support ipv6
Your system is not reachable from IPv6. fakessh.eu. 38300 IN MX 10 mail.fakessh.eu. mail.fakessh.eu. 38303 IN AAAA 2001:41d0:2:3dd6:1234:5678:9abc:def0 schleppi% ping6 mail.fakessh.eu. PING mail.fakessh.eu.(2001:41d0:2:3dd6:1234:5678:9abc:def0) 56 data bytes >From vss-2-6k.fr.eu icmp_seq=1 Destination unreachable: Address unreachable >From vss-2-6k.fr.eu icmp_seq=5 Destination unreachable: Address unreachable This is not a postfix problem, it looks like you misconfigured your system. Bernhard
