> If a email bounced back, how offen the qmail will try to send
> it again?
> try how many times?
"Bounce" implies permanent error from the remote end or inability to
connect to the remote within the appropriate time. No mail system (except,
um, Outlook) retries bounced mail. However, for temporary errors:
See queuelifetime in 'man qmail-send'
See "Does qmail back off from dead hosts?" in the FAQ.
> and how long the qmail will give up?
See queuelifetime in 'man qmail-send'
> If qmail give up, how it process the bounced email? delete it
> from queue
> and forward it to Mail-daemon@localhost?
Bounces are returned to the sender. If the bounce bounces, it'll
end up in the local postmaster account.
> Can we control the retry interval
No - you don't really want to, anyway.
> and the longest waiting time?
Yes - see queuelifetime in 'man qmail-send'
> Is it possible qmail forget a mail in the queue?
Unlikely.
> if so, how can we dump it out?
If you want to force it to bounce before the queuelifetime is up,
see the following tip from www.qmail.org/top.html:
"Frederik Vermeulen says: If you don't want a specific undeliverable mail to
sit in the queue any longer, you can make it reach the queuelifetime by
running touch -d '1 week ago' on its queue/info file. It will then be
bounced after one more delivery attempt."
--
gowen -- Greg Owen -- [EMAIL PROTECTED]