2008/11/5 Zachár Balázs <[EMAIL PROTECTED]>:
> 2. I (my guests) am sending many newsletters with my postfix. Can I set the 
> sending rate? ( Like: 10 mail/second )

You can use a policy server to enforce some throttling. Install a
policy server and update your main.conf with something like:
smtpd_recipient_restrictions =
 ...
 check_policy_service inet:127.0.0.1:10031

Of course you must provide IP:port of your policy server. I am happily
using policyd v1. You can for example set "maximum mail sent per time
period" per sender and many others. It requires an SQL backend though.
http://www.policyd.org/
policyd v1 download:
http://sourceforge.net/project/showfiles.php?group_id=133598&package_id=146713&release_id=533414

Cheers,
Zoltan
--
http://zee.balogh.sk/

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