> -----Original Message----- > From: Rob Sterenborg [mailto:[EMAIL PROTECTED] > Sent: Thursday, October 18, 2007 22:48 > To: [email protected] > 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.
