* Matteo Cazzador <mat...@netlite.it>:
> Ok thank's in alternative is it possible use of
> 
> disable_dns_lookups=yes
> 
> to increase performance?

Uhm, your server probably won't be able to send out mail out after
that change, but at least it will do this quickly.

> My postfix server is a virtual mail server
> With mysql backend

What exactly IS your performance problem? Sending? Receiving? Local
delivery? How are you measuring?

-- 
Ralf Hildebrandt
  Geschäftsbereich IT | Abteilung Netzwerk
  Charité - Universitätsmedizin Berlin
  Campus Benjamin Franklin
  Hindenburgdamm 30 | D-12203 Berlin
  Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962
  ralf.hildebra...@charite.de | http://www.charite.de
            

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