We have a problem here, one of our users are trying to send an mail and the RCTP down´t receive. Zimbra send a msg to my user with:
Protocol error: host xxxx.xxxxxx.xx[ip.ip.ip.ip] said:
250 RCPT TO accepted (in reply to DATA command)
I can see in /var/log/zimbra.log
Jun 17 18:24:20 zimbra amavis: (09946-06) FWD via SMTP: <email@example.com> -> <firstname.lastname@example.org>,BODY=7BIT 250 2.0.0 Ok, id=09946-06, from MTA([127.0.0.1]:10025): 250 2.0.0 Ok: queued as 58D5538DD00
Jun 17 18:24:20 zimbra amavis: (09946-06) Passed CLEAN, LOCAL [192.168.1.130] [192.168.1.130] <email@example.com> -> <firstname.lastname@example.org>, Message-ID: <4C1A5B95.email@example.com>, mail_id: MsHUTGKlw6-7, Hits: 0.581, size: 3542, queued_as: 58D5538DD00, 735 ms
Jun 17 18:24:20 zimbra postfix/smtp: 9D13738DCFF: to=<firstname.lastname@example.org>, relay=127.0.0.1[127.0.0.1]:10024, delay=0.81, delays=0.07/0.01/0/0.73, dsn=2.0.0, status=sent (250 2.0.0 Ok, id=09946-06, from MTA([127.0.0.1]:10025): 250 2.0.0 Ok: queued as 58D5538DD00)
Jun 17 18:24:20 zimbra postfix/qmgr: 9D13738DCFF: removed
Jun 17 18:24:20 zimbra postfix/smtp: 58D5538DD00: to=<email@example.com>, relay=mail.dgal.pt[220.127.116.11]:25, delay=0.43, delays=0.08/0.01/0.33/0, dsn=4.0.0, status=deferred (host mail.dgal.pt[18.104.22.168] refused to talk to me: 421 5.5.2 Syntax error (command line too long))
I try to send mail from other account in zimbra to other account in destination server but I get the same error...
From gmail I can send to zimbra and to destination mail without problems.
I google it and find that some exchange servers have problems with ESMTP protocol greeting.
Any one have this (command line too long) error ????
Thanks in advace