Re: Email Attachment Blocking

[Adam Nave <nave () MACALESTER EDU>]

We use Google Apps for Edu, which imposes a 20 MB attachment size limit and
prevents the sending and receiving of executable files (.exe and .bat, I
think) as a security precaution. It also scans inside common compressed
formats for executables. The sender does get bounce messages for executables
and exceeding the size limit. Here's google's help page on the subject:
http://mail.google.com/support/bin/answer.py?answer=6590&topic=12842

We've always had an attachment size limit, so our community did not have a
problem with continuing that when we moved to Google Apps last year. The
executable thing did catch a few people, but there have only been a handful
of times where we needed to help provide a work-around and no real
complaints.

--Adam

On Tue, Jan 27, 2009 at 3:30 PM, Steve Brukbacher <sab2 () uwm edu> wrote:

> Hi,
> I'm taking an informal survey to see if others are currently blocking
> any email attachments at the mail server (or component of your mail
> server infrastructure).  If so, which ones?
>
> If yes, does the email simply get dropped or does the sender and/or
> recipient receive some sort of notification?
>
> Any comments on how you worked with your user community on this would be
> helpful as well.
>
> --
> Steve Brukbacher, CISSP
> University of Wisconsin Milwaukee
> Information Security Architect



--
Adam Nave, CISSP
Academic Technologist
Macalester College