The Network error on destination MX has been resolved. The Address family mismatch is still open.
smtpctl show queue gives me a9f755dd88e88083|inet4|mta||u...@example.com|cont...@bugs.debian.org|cont...@bugs.debian.org|1595227438|1595227438|0|27|pending|29446|Address family mismatch on destination MXs ebbe485d057fa820|inet4|mta||u...@example.com|xxx...@bugs.debian.org|xxx...@bugs.debian.org|1595227386|1595227386|0|27|pending|29394|Address family mismatch on destination MXs Please note the "inet4" and % host bugs.debian.org bugs.debian.org has address 140.211.166.212 bugs.debian.org has address 209.87.16.39 bugs.debian.org has IPv6 address 2605:bc80:3010:b00:0:deb:166:212 bugs.debian.org has IPv6 address 2607:f8f0:614:1::1274:39 bugs.debian.org mail is handled by 10 buxtehude.debian.org. % host buxtehude.debian.org. buxtehude.debian.org has address 209.87.16.39 buxtehude.debian.org has IPv6 address 2607:f8f0:614:1::1274:39 buxtehude.debian.org mail is handled by 10 mailly.debian.org. buxtehude.debian.org mail is handled by 10 muffat.debian.org. Currently telnet 140.211.166.212 smtp fails with Connection refused, but where is the address family mismatch between inet4 and 209.87.16.39 ? Regards Harri
