Posftix error log - TLS connection

V syslogu dostavam tyto hlasky pri odesilani na severy, ktere jsou dole v logu, jmenovite atlas.cz a cmail.cz (gts.cz)

Znamenaji tyto logy ze oni maji stare certifikaty? Ja ho mam totiz jeste platny, myslim, ale take ho mam self-signed.

Oct 27 13:26:50 ns0 postfix/smtp[28866]: setting up TLS connection to mx1.mail-atlas.net
Oct 27 13:26:50 ns0 postfix/smtp[28866]: verify error:num=18:self signed certificate
Oct 27 13:26:50 ns0 postfix/smtp[28866]: verify error:num=10:certificate has expired
Oct 27 13:26:50 ns0 postfix/smtp[28866]: cert has expired
Oct 27 13:26:50 ns0 postfix/smtp[28866]: Peer verification: CommonName in certificate does not match: localhost != mx1.mail-atlas.net

Oct 27 13:32:39 ns0 postfix/cleanup[29134]: 0154BE775: message-id=<4541EE53.2040501@allsupp.com.au>
Oct 27 13:32:40 ns0 postfix/qmgr[28542]: 0154BE775: from=jirik@allsupp.com.au, size=8158, nrcpt=1 (queue active)
Oct 27 13:32:40 ns0 postfix/smtp[29135]: setting up TLS connection to wings.gts.cz
Oct 27 13:32:40 ns0 postfix/smtp[29135]: verify error:num=18:self signed certificate
Oct 27 13:32:40 ns0 postfix/smtp[29135]: Peer certificate could not be verified
Oct 27 13:32:40 ns0 postfix/smtpd[29131]: disconnect from 60-241-250-130.static.tpgi.com.au[60.241.250.130]
Oct 27 13:32:45 ns0 postfix/smtp[29135]: 0154BE775: to= jan.kolar@gtsnovera.cz, relay=wings.gts.cz[195.39.37.163], delay=7, status=sent (250 2.0.0 4541ee5c-003b974c Message accepted for delivery)

Dotaz: Posftix error log - TLS connection