North American Network Operators Group|
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Re: disabling SMTP
Okay, so this is a problem when an SMTP server is hosted behind the PIX? I thought the fixup statements were for outbound connections, and with it on right now I get the full banner from SMTP servers. I don't host an SMTP server myself, so can't check that.when smtp fixup is on (default on many older pixes, i gather that there may be some improvements on newer pixes), the smtp banner is mostly obscured by * characters. the intent is a classic security by obscurity play, to hide the type and verison of the MTA behind the pix.