Here follows the current official word on this matter....
Hi again Ray
Looking further into this, it would appear that the emails found to have anything that is "banned-content", Zimbra simply discards said email into the quarantine folder, and does not send it to an account, as it would if it found a virus.
Below is a sample from our log, after some testing. We had .wmf attachments being discarded as banned. As you can see, the file is given a unique name ("banned-JD-jJwh8c1Nq"), and placed in the quarantine directory (/opt/zimbra/data/amavisd/quarantine/).
Oct 24 17:39:23 zcs7-ga amavis[27701]: (27701-01) Checking: JD-jJwh8c1Nq MYNETS [10.21.71.188] <fred@zcs7.cork.zimbralab.com> -> <pierce@zcs7.cork.zimbralab.com>
Oct 24 17:39:23 zcs7-ga amavis[27701]: (27701-01) p.path BANNED:1
pierce@zcs7.cork.zimbralab.com: "P=p003,L=1,M=multipart/mixed | P=p002,L=1/2,M=image/x-wmf,T=asc,N=test.wmf", matching_key="(?i-xsm:.\\.(wmf)$)"
Oct 24 17:39:23 zcs7-ga amavis[27701]: (27701-01) local delivery: <> -> banned-quarantine, mbx=/opt/zimbra/data/amavisd/quarantine/banned-JD-jJwh8c1Nq
I am sorry I can give you nothing better in relation to this Ray.
Regards
Pierce Preston
GSS - Global Support Services
Zimbra, a division of VMware
Pierce advises the use of the following commands to deliver the banned mail directly to the appropriate mailbox (where it appears in an already "Read" condition, not "Unread" as you might expect):
Then, what you will need to do to retrieve the email is run the following command:
$ zmmailbox -z -m <account to send the message to> am "/<Folder to put email>" banned-X
example $ zmmailbox -z -m myuser am "/Inbox" banned-P0x9poP0Xx7F
banned-X is found from:
zimbra@zimbra:~/data/amavisd/quarantine$ ls -lh
Hope this helps....