FYI: Got a temporary a problem with mail to lists.cluenet.de:
----- Transcript of session follows -----
<ipv6-ops@lists.cluenet.de>... Deferred: 403 4.7.0 TLS handshake failed.
Warning: message still undelivered after 4 hours
Will keep trying until message is 5 days old
Caused by:
bjorn@canardo:~$ openssl s_client -6 -connect mail1.cluenet.de:25 -servername mail1.cluenet.de -starttls smtp -quiet
139725204116608:error:1425F102:SSL routines:ssl_choose_client_version:unsupported protocol:../ssl/statem/statem_lib.c:1929:
WTF? I expected "dh key too small" which has been a bit of an issue
since I updated openssl. But "unsupported protocol"? That's not good.
But it's confirmed by e.g.
https://ssl-tools.net/mailservers/lists.cluenet.de
This must be embarrassing? Time to drop the "clue"....
Bjørn
----- Transcript of session follows -----
<ipv6-ops@lists.cluenet.de>... Deferred: 403 4.7.0 TLS handshake failed.
Warning: message still undelivered after 4 hours
Will keep trying until message is 5 days old
Caused by:
bjorn@canardo:~$ openssl s_client -6 -connect mail1.cluenet.de:25 -servername mail1.cluenet.de -starttls smtp -quiet
139725204116608:error:1425F102:SSL routines:ssl_choose_client_version:unsupported protocol:../ssl/statem/statem_lib.c:1929:
WTF? I expected "dh key too small" which has been a bit of an issue
since I updated openssl. But "unsupported protocol"? That's not good.
But it's confirmed by e.g.
https://ssl-tools.net/mailservers/lists.cluenet.de
This must be embarrassing? Time to drop the "clue"....
Bjørn