BANNED, message contains text/plain,.exe issue.

[Watthanachai Kekhua]

Dear Amavis-users,

Today we found some strange situation for incoming email when enabled  blocking ".exe" in zip file extension on amavisd.conf  as below configuration.

### amavisd.conf for BLOCKED ANYWHERE
# qr'^UNDECIPHERABLE$',  # is or contains any undecipherable components
qr'^\.(exe|exe-ms|dll)$',                   # banned file(1) types, rudimentary

Now , We always found banned email from incoming email send from Lotus note MTA .
And Sender address try to send attach file ".xls" and normal email with plain text after that our amavisd detect both email as "BANNED" type.

#maillog message show
BANNED, message contains text/plain,.exe
(554 5.7.0 Bounce, id=30228-09-2 - BANNED: text/plain,.exe)
#Detail information application
FreeBSD 9 Amd64 bit
Postfix + amavisd-new-2.8.0_2

Have you ever found this kind of issue and how to solved problem for this issue ?

Please do not hesitate to contact us , If you have any questions .
Best Regards.
################################
#  Watthanachai KEKHUA (Golf)
#  Operation And Maintenance Department (OAM)
#  Tel: 02-2367227 Ext. 1624
#  NTT Communications (Thailand) Co., Ltd.
#################################

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