Is there a log file on a post office.......

[sae65]

That holds the information regarding the size of an email that may have been sent to say another user on that same po without going into user accounts to manually check. I realize the mailbox.log does not have that specific data in it.

Thanks if you can assist me in this matter.

[ArcaneMagus]

Try looking in /var/log/zimbra.log you should see lines like this:

Nov  4 12:27:19 email amavis[20550]: (20550-17) Passed CLEAN, [123.123.123.123] [123.123.123.123] <NoReply@somecompany.com> -> <user@domain.com>, Message-ID: <AEVECMDBSP01qHcehEc00007974@aevecmdbsp01.somecompany.com>, mail_id: Xx8T8O94eJ8m, Hits: -2.598, size: 14959, queued_as: 90ADB904002, 4243 ms

or if you have amavis disabled on the box look for lines like

Nov  4 12:27:19 email postfix/qmgr[28756]: 90ADB904002: from=<NoReply@somecompany.com>, size=15639, nrcpt=1 (queue active)

but that only has sender, not the recipient as well.

[sae65]

Thank you, ArcaneMagus