Need to allow blackberry EPT.DAT files

[Robert Lopez]

Some offices of the college are being affected by some blocked data
files. They are .dat files and we do not want to unblock .dat files.
I am told in this case the data files are part of syncing blackberry
applications to desktop applications.
I considered allowing EPT.DAT, but that seems like too much of an
opportunity for the wrong persons.

Here are some of the facts:

Report: MailScanner: No programs allowed (ETP.DAT)

Received: from mailrouter1104.na.blackberry.net
(mailrouter1104.na.blackberry.net [204.187.87.55])
 	by xxxx.cnm.edu (Postfix) with SMTP id 625296604E2
 	for <slederle at cnm.edu>; Fri, 11 Sep 2009 06:56:02 -0600 (MDT)
 Received: from ETP1107.etp.prod.on.blackberry
(etp1107.etp.prod.on.blackberry [172.23.40.50])
 	by mailrouter1104.na.blackberry.net (Postfix) with ESMTP id 65EBA2E257F
 	for <xxxxxx at cnm.edu>; Fri, 11 Sep 2009 12:55:46 +0000 (UTC)

Would it take a custom modification to 'allow EPT.DAT files only from
*.na.blackberry.net' or could a file rule accomplish it?

The filename.rules.conf seems to not be able to deal with the domain
restriction.

Looking at CustomConfig.pm it seems there could be a
/etc/MailScanner/spam.bydomain/whitelist/blackberry file if everything
from na.blackberry.net and from prod.on.blackberry was wanted to be
allowed. As I have no idea what mail could come from
those it does not seem wise to just open for everything from them. [I
have not found a way to ask blackberry/rim any questions.]
-- 
Robert Lopez
Unix Systems Administrator
Central New Mexico Community College (CNM)
525 Buena Vista SE
Albuquerque, New Mexico 87106