Eugene Vilensky wrote:
Hi,
I'd like to be able to set a hard limit on the number of recipients
that postfix will ever process, globally across my system. I see
smtpd_recipient_limit but I think that would have the unintended
consequence of "legitimizing" a ridiculous amount of recipients into
multiple reasonable connection attempts.
Exactly; postfix will process the first $smtpd_recipient_limit
recipients and the client is free to immediately reconnect
and send the next batch. This behavior is mandated in the RFCs.
Some zombies may not reconnect after the initial batch of
recipients but greylisting is a better countermeasure against
this behavior.
Are there any postfix configuration settings that would reject
messages from a client MUA if the message contains too many
recipients?
Thanks!
--Eugene
To reject messages exceeding some limit with a permanent error
code, you need a policy service.
http://www.postfix.org/addon.html#policy
--
Noel Jones
