During the migration from our old mail server to Zimbra 8.6, we created a number of Distribution Lists, however, for some reason (our fault probably), one of those list which was supposed to hold 4 email adresses was empty, and so the mails addressed to this particular distribution list were not delivered to the corresponding email adresses.
Issue was quickly solved, but I am currently trying to retrieve as much information as possible about those lost mails, all I could find for now was in the zimbra.log files (which is a great start) : IP adresses of sending servers, name of sending addresses...
Interesting lines found in zimbra.log-date files :
Dec 2 04:35:01 ourmailserver postfix/smtpd[24292]: NOQUEUE: filter: RCPT from distantmailserver.com[distantserverIP]: <[email protected]>: Sender address triggers FILTER smtp-amavis:[127.0.0.1]:10026; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<distantmailserver.com>
Dec 2 04:35:01 ourmailserver postfix/smtpd[24292]: NOQUEUE: filter: RCPT from distantmailserver.com[distantserverIP]: <[email protected]>: Sender address triggers FILTER smtp-amavis:[127.0.0.1]:10024; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<distantmailserver.com>
Dec 2 04:35:01 ourmailserver postfix/smtpd[24292]: NOQUEUE: reject: RCPT from distantmailserver.com[distantserverIP]: 550 5.1.1 <[email protected]>: Recipient address rejected: ourdomain.com; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<distantmailserver.com>
Does someone know if I can find something else in another log? Like maybe the subject of those messages?
Thank you!
