On 9 Aug 2004 at 20:21, Kevin A. McGrail wrote: > I thought about the statement below a lot because it seemed correct at first > that pushing valid emails to all the gateways would solve the issue. > However, the more I thought about it, invalid bounces are a big problems and > SPF is a reasonable solution to start cutting down on them. Large batches > of outbound false emails that don't match SPF or get repeated bounces should > trigger a shutdown of a clients outbound mailing ability especially as > worms/virii that forge headers become the norm.
If the receiving MX servers always knew all valid recipient addresses *at (E)SMTP connection time*, then there would be no bounces...only rejections. This solves the problem without introducing anything new to (E)SMTP. -- Jeff Rife | "Space. It seems to go on and on forever. But SPAM bait: | then you get to the end and a gorilla starts [EMAIL PROTECTED] | throwing barrels at you." [EMAIL PROTECTED] | -- Philip J. Fry, "Futurama" _______________________________________________ Visit http://www.mimedefang.org and http://www.canit.ca MIMEDefang mailing list [EMAIL PROTECTED] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang