>Yes, it's usually very bad to have a queue full of
>MAILER-DAEMON messages.
>
>What are these, NDR's to undeliverable/unknown/invalid recipients?
>(use "postcat -q F0F8AB18271" to view the message)
>If so, don't accept mail to undeliverable recipients.
>
>Accepting and then bouncing mail to unknown recipients will
>greatly increase load on your server, and will get you
>blacklisted. Instead, configure your system to reject unknown
>recipients during SMTP.
>
>Here's some places to start:
>http://www.postfix.org/ADDRESS_CLASS_README.html
>http://www.postfix.org/LOCAL_RECIPIENT_README.html
>
>If these are not NDR's, please give us more information
>http://www.postfix.org/DEBUG_README.html#mail.
Noel,
Thanks for your response. The emails in the queue are bounces
from my email server. This box is just an email gateway which relays
to an internal email server.
I believe NDR means "Non Deliverable Return" -- im basing my decisions
on that assumption. :) So yes, these are NDRs.
All the MAILER-DAEMON messages are for recipients on my internal
email server, but those recipients no longer exist. There are thousands
of accounts on the internal email server, so specifying them in a
recipient list seems excessive. Perhaps im not reading those documents
carefully enough. I am already specifying $relay_domains. But since
I am relaying, using "local_recipient_maps" wont help, and a "relay_
recipient_map" would be a major hassle. Any other tips?
It appears that my email gateway is attempting to bounce a message
back to the original sender that the recipient no longer exists. I can
attest that all recipients of the bounce email are not valid servers either
and are spam. I cannot telnet to these systems on 25 or 110.. so thats
why they are timing out on my gateway.
Any additional information is greatly appreciated!
Thank you!
++ Amaru
