>I understand that these time outs are spam.  But is there a way to clean
>them out of the queue

in the basic config files, there are some scripts that help with queue cleangin

>  and keep them out?

don't accept them.

1. don't accept inbound for non-existent/non-verified recipients (so there 
can be no non-mailer-daemon bounce msgs generated by postfix)

2. don't accept inbound msgs from non-verified senders.

>   I have tried deleting all the
>messages in the queue and more just come right back.  There are 700+ of =
>them
>in the almost all the time.

the last, and perhaps least effectiver perhaps unacceptable, tactic is to 
set the queue lifetime to short, like 2 hours, so the mailer-daemon msgs 
expire as undeliverable, rather than hang around in the queue for default 
of 5 days.

Len


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