On Tue, Sep 23, 2014 at 10:49 AM, Francis SOUYRI <francis.sou...@apec.fr> wrote:

Hi,

> After checking de CheckPoint firewall Log, I see some very big (more than
> 1Go) smtp transfers from our Postfix gateway.

did you carefully check your logs for, example, spam via smtp auth?

btw: install pflogsumm, it can quickly help you to understand what is going on.


-- 
Cris, member of G.U.F.I
Italian FreeBSD User Group
http://www.gufi.org/

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