North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: incorrect spam setups cause spool messes on forwarders
On Mon, 1 Dec 2003, Steven M. Bellovin wrote: > Right. Assuming that the described validation scheme is, in fact, > what's being used, you'd expect Verizon's mailer to retain and cache > the validation. That way, a single 450 can be turned into a 200 series > or a 550. Also imagine your domain being joe-jobbed. You, as an innocent bystander, then get hammered by Verizon as they try to do a lookup on possibly millions of incoming mails. It's just not a very sane way to reduce their spamload. It's something I'd expect from a smaller ISP, but I would have imagined by now that VZ would have the money to go with something like Brightmail, or develop something in-house like AOL. Charles > As Randy said, 450 means "there's a problem here that should be fixed > soon; come back later". If it doesn't change, it's not a 450. > > --Steve Bellovin, http://www.research.att.com/~smb > >
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