Re: All spam filters fail in comparison...
> ... to TMDA. It's not a filter, rather a
> whitelist/blacklist based
> challenge/response system. I installed
> it on my ISP's mailserver and customers
> are bombarding our phones asking us to
> install it for them (especially w/ the
> SoBig.F virus making its rounds).
This is the worst and most rude solution.
I do not want to have to ack your TDMA mails, I automatically
block you from all my mail servers as soon as I receive a confirmation mail, and as a listmaster I've done the same on
any site were people sent TDMA-like ack messages.
Think mail admin sending a message and getting back 10,000+ TDMA messages (for instance monthly mailman
password reminder), except that the biggest list server I admined had 400,000 users...