i have upgraded to zimbra 8.7.1 but my problems persist.
below is more information from zimbra.log in the hopes that someone can help me debug and resolve.
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Oct 27 16:07:33 **** postfix/lmtp: SSL_connect error to ****.com[127.0.0.1]:7025: -1
Oct 27 16:07:33 **** postfix/lmtp: warning: TLS library problem: error:14077410:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert handshake failure:s23_clnt.c:769:
Oct 27 16:07:33 **** postfix/smtp: BF44D660026: to=<****@****.com>, orig_to=<****@****.com>, relay=127.0.0.1[127.0.0.1]:10024, delay=0.74, delays=0.11/0/0.01/0.62, dsn=2.0.0, status=sent (250 2.0.0 from MTA(smtp:[127.0.0.1]:10025): 250 2.0.0 Ok: queued as 789CA660058)
Oct 27 16:07:33 **** postfix/qmgr: BF44D660026: removed
Oct 27 16:07:33 **** postfix/dkimmilter/smtpd: disconnect from localhost[127.0.0.1] ehlo=1 mail=1 rcpt=1 data=1 quit=1 commands=5
Oct 27 16:07:33 **** postfix/lmtp: 789CA660058: to=<****@****.com>, relay=****.com[127.0.0.1]:7025, delay=0.02, delays=0.01/0/0.01/0, dsn=4.7.5, status=deferred (Cannot start TLS: handshake failure)
this happens for every email that comes to my server. my read of the logs is that a connection to LMTP over ssl takes place, a failure takes place and the mail gets queued. sometime later it gets processed and it works.
thus, all incoming mail gets delayed by a few minutes on my server. i would like to avoid this behavior.
one thing i'm confused about is that i followed the instructions to disable SSLv3 on lmtp, smtp, and smtpd (and i can confirm in main.conf) so i don't know why sslv3 connection is trying to be established in the first place on lmtp (7025).