postfix&postgrey performance problem

[FeG]

Hi all...

I've problems with my postfix server... whitin a few minutes it creates a lot of smtpd-processes and connections to the smtp-port are timing out.

I thought, at first, it's a problem with postfix, but tests approved, that postgrey is causing the problem. It seems as if postgrey is too slow to handle the much requests postfix sends.

I tried switching the connection between postfix and postgrey to a unix socket, but get the same problems here

So my settings where, for the inet-connection:

/etc/postfix/main.cf

Code:

smtpd_recipient_restrictions = permit_mynetworks,
                               permit_sasl_authenticated,
                               reject_unauth_destination
                               check_policy_service inet:127.0.0.1:60000

and for the unix socket-connection:

Code:

smtpd_recipient_restrictions = permit_mynetworks,
                               permit_sasl_authenticated,
                               reject_unauth_destination
                               check_policy_service unix:postgrey/postgrey.socket

where /var/spool/postfix/postgrey/postgrey.socket is:

Code:

srwxrwxrwx 1 postgrey postgrey 0 2007-09-20 12:46 postgrey.socket

I don't know why postgrey has such a performance problem and found no information about this yet.

Does anyone of you has an idea how to solve this? Thanks in advance.

Greetings
FeG