> The second problem is that it still forces the originating SMTP server > to pass on the 5xx error as a bounce message to the originator.
Yeah, I guess this would be a problem in cases where the originating server is an open relay that's being exploited by a spammer. I wonder what proportion of spam is sent in this manner -- and and how much, on the other hand, comes from a direct SMTP conversation between a malicious client and the MX server of the recipient's domain. Ben -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
