On Tue, September 26, 2006 5:08 pm, Travis Doherty wrote: > They should *always* be sending to the envelope from address (SMTP > `MAIL > FROM` command), with an empty envelope sender (SMTP `MAIL FROM:<>`) to > avoid loops. There was a brief period in time where there was an Errors-to: header that some MTAs where using... I got no idea if they were just ignoring RFCs (Microsoft) or the RFCs changed or what... But adding the Errors-to: header may solve things for a tiny percentage of legacy (broken) MTAs. YMMV -- Like Music? http://l-i-e.com/artists.htm -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php