Drive-by spam hits wireless LANs

Wed Sep 11 18:19:20 UTC 2002

One thing I've noticed that may be an anti-spam measure:  STN, the ISP 
that servers Marriott hotels (among others) seems to have a 
"transparent" proxy intercepting outbound traffic to port 25.  Not sure 
why they'd do that except to deter check-in spammers.  They *don't* do 
anything with traffic to port 80, as best I can tell.

		--Steve Bellovin, http://www.research.att.com/~smb (me)
		http://www.wilyhacker.com ("Firewalls" book)