Matt Kettler wrote:
Aaron Boyles wrote:
Uh oh... I might be a guilty party here. What do you mean by "bounce after
accepting?" With my own app, it receives the E-Mail, gets as far as the
DATA command, does a quick overview of the E-Mail, and if it's considered
spam, it returns a 550 - User Doesn't Exist instead of a 250 - Okay.
Is that what you mean?
No.. bounce after accept means to not validate the recipient until after the
whole SMTP session is done.
ie: a server set up to queue and forward all mail for a domain to an internal
server without any checks of the recipient at all. Later the internal server
rejects the mail because the user doesn't exist, resulting in a post-delivery
bounce message being generated.
Most servers of this sort also self-flood with double-bounce messages.
ie: any standard qmail install.
-Jim
