Firewall Wizards: Re: MS Entourage (on OS X) sends information about internal network

[Vladimir Parkhaev <vladimir () arobas net>]

Quoting John Adams (jna+dated+1086561290.e25d7d () retina net):
> I don't know of too many firewalls that block outbound EHLO data -- does 
> anyone know of an FW that can block this type of leak? 
It is not for FW to block. Even if you mask EHLO (PIX probably does that)
chances are your internal addresses will leak in headers anyway.
Upgrade your MTA to postfix or qmail....


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