Viktor Dukhovni <postfix-us...@dukhovni.org> writes: >> On Feb 3, 2018, at 1:21 PM, Karol Augustin <ka...@augustin.pl> wrote: >> >> I have few people connecting using Macs. I had similar issue when I >> upgraded libssl to 1.1.0f-4 all of them couldn't connect as they are >> still using TLS 1.0. I had to temporarily downgrade to 1.1.0f-3 until >> the problem was fixed in 1.1.0g-1. The problem was that developers >> decided to disable TLS1.0, which impacted a lot of things. > > This is not consistent with the OP's logs for the failed session: > > Jan 29 16:44:57 fbsd63 postfix/smtpd[93113]: connect from > unknown[118.174.201.202] > Jan 29 16:44:57 fbsd63 postfix/smtpd[93113]: Anonymous TLS connection > established from unknown[118.174.201.202]: TLSv1.2 with cipher > ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits) > Jan 29 16:44:59 fbsd63 postfix/smtpd[93113]: warning: > unknown[118.174.201.202]: SASL PLAIN authentication failed: > Jan 29 16:45:05 fbsd63 postfix/smtpd[93113]: warning: > unknown[118.174.201.202]: SASL PLAIN authentication failed: > Jan 29 16:45:11 fbsd63 postfix/smtpd[93113]: warning: > unknown[118.174.201.202]: SASL PLAIN authentication failed: > Jan 29 16:45:21 fbsd63 postfix/smtpd[93113]: warning: > unknown[118.174.201.202]: SASL PLAIN authentication failed: Connection lost > to authentication server > > TLS is set up just fine. What's failing is SASL. Perhaps there are > different authentication settings on port 587 than on 25, and remaking > the email account has the effect of switching the submission port? > > Other factors to consider: > > http://www.postfix.org/postconf.5.html#smtpd_sasl_local_domain > http://www.postfix.org/postconf.5.html#smtpd_sasl_security_options
Both are left to the default (empty) on the old and new server. Thank you, Olivier --