[Mimedefang] Re: What to do about bounced forgeries?

[Jeremy Mates]

* Rick Mallett <rmallett at ccs.carleton.ca>
> So what do we do? Hope the spammers get tired of using our domain in
> their forgeries, or do we have to build a frontend system that uses a
> more lightweight process than sendmail to handle the unknown user
> rejections. Anyone have any ideas?

Support the development and deployment of SMTP+SPF, which should allow
everyone else to determine where the legitimate e-mail for your domain
originates from, and reject the rest instead of bouncing it:

http://spf.pobox.com/intro.html