RE: coming to your inbox: mp3 stock spams

> -----Original Message-----
> From: Rob Sterenborg [mailto:R.Sterenborg@netsourcing.nl]
> Sent: Thursday, October 18, 2007 22:48
> To: users@spamassassin.apache.org
> Subject: RE: coming to your inbox: mp3 stock spams
>
>
> Luis Hernán Otegui wrote:
> > Anyway, the Faculty I work for tries to keep the e-mail system only
> > for research purposes, and mostly students and (sadly) technicians
> > tend to goof around with mail. Bandwidth isn't cheap here, so they
> > decided to straightly cut those extensions. Remember, the
> customer is
> > always right...
>
> If you'd just block out the extensions and I were a student
> in your faculty and wanted to send an MP3 or something, then
> I'd just goof a bit more and rename a .mp3 to a .txt, just
> because I can get around that. That's what I think (most)
> students do if they're clever enough.
> Of course blocking extensions is cheap in CPU/mem resources
> but IMHO it's not the way to go. Inspecting the attachments
> checking for filetypes to block is more intensive but also
> much much harder to omit. Of course, you can still block
> these extensions... :-)
>
>
> Rob

Blocking extensions is effective against spammers, since most folks won't go to the trouble of saving a file, renaming it, and then listening to it, from some unknown user with an inane message in the body of the email. Received on Fri Oct 19 14:12:19 2007