MacOS 10.11.6
Mail.app 9.3
Oct 22 03:50:51 imap-login: Info: Disconnected (disconnected before auth was ready, waited 0 secs): user=<>, rip=x.x.x.x, lip=x.x.x.x, TLS handshaking: SSL_accept() failed: error:1408A0C1:SSL routines:SSL3_GET_CLIENT_HELLO:no shared cipher, session=
Oct 22 03:51:51 box postfix/smtpd[15834]: connect from x.x.x.x.red.provider.net[x.x.x.x]
Oct 22 03:51:53 box postfix/smtpd[15834]: warning: x.x.x.x.red.provider.net[x.x.x.x]: SASL LOGIN authentication aborted
Oct 22 03:51:54 box postfix/smtpd[15834]: warning: x.x.x.x.red.provider.net[x.x.x.x]: SASL LOGIN authentication aborted
Oct 22 03:51:54 box postfix/smtpd[15834]: disconnect from x.x.x.x.red.provider.net[x.x.x.x]
Oct 22 03:52:25 box postfix/smtpd[15834]: connect from x.x.x.x.red.provider.net[x.x.x.x]
Oct 22 03:52:26 imap-login: Info: Disconnected (no auth attempts in 0 secs): user=<>, rip=x.x.x.x, lip=x.x.x.x, TLS handshaking: SSL_accept() failed: error:1408A0C1:SSL routines:SSL3_GET_CLIENT_HELLO:no shared cipher, session=
Oct 22 03:52:27 box postfix/smtpd[15834]: warning: x.x.x.x.red.provider.net[x.x.x.x]: SASL LOGIN authentication aborted
Oct 22 03:52:27 box postfix/smtpd[15834]: warning: x.x.x.x.red.provider.net[x.x.x.x]: SASL LOGIN authentication aborted
Oct 22 03:52:28 box postfix/smtpd[15834]: disconnect from x.x.x.x.red.provider.net[x.x.x.x]