Jason R. Mastaler wrote: > "Jesse D. Guardiani" <[EMAIL PROTECTED]> writes: > >> I'm not so sure about it being "hot", Jason. I searched a little >> this weekend on Google and I couldn't find ANYTHING for Postfix, >> Exim, QMail, or any other MTA. > > You're probably just using the wrong terminology. Postfix calls this > ``sender address verification''. I'm not sure what Exim calls it.
Yeah. That helped a lot with the searches. Exim seems to have pretty comprehensive support for "sender address verification" already. Postfix's seems less mature. Probably due to the non-monolithic architecture. I've started a discussion on the qmail mailing list. So far the responses are favorable. The only thing that bugs me is the possibility of a DOS from thousands or millions of servers using this feature in the future. But with only a few MTAs running it the few will definately have a spam fighting advantage over the rest of the pack. One interesting suggestion by a member of the qmail list was that TMDA itself perform the SMTP probe. I agree that this is better implemented in the MTA, but it's interesting and something I hand't considered before. -- Jesse Guardiani, Systems Administrator WingNET Internet Services, P.O. Box 2605 // Cleveland, TN 37320-2605 423-559-LINK (v) 423-559-5145 (f) http://www.wingnet.net We are actively looking for companies that do a lot of long distance faxing and want to cut their long distance bill by up to 50%. Contact [EMAIL PROTECTED] for more info. _________________________________________________ tmda-workers mailing list ([EMAIL PROTECTED]) http://tmda.net/lists/listinfo/tmda-workers
