>I have a dual gateway servers setup in front of my IMail server.  The two
>gateways are Imail servers also.

:((

>   All my Mail domains sit on the same class
>c address space so on the Gateways Relay Mail For:  I have the Class C of
>all my domains and this works well.  On my Main Imail Server I have Relay
>Mail For: My address blocks all others use SMTP Auth.  I have just noticed
>that Say a Spammer on the following ip 192.168.0.1

How can a spammer on an RFC1918 ip even get to your boxes?  Isn't your 
border router set up block source/destination addresses with RFC1918 ip's?

>claims his email address is [EMAIL PROTECTED] (which lets say is a VALID 
>address), now he sends mail and it hits my gateway box and then forwards 
>the mail to my Real Imail Server Which Sees the IP as my Gateway  not the 
>IP where the Email was Sent
>from, so the mail goes to my users, hence an open relay if he knows one of
>my users Email Address.  What Option can I use to stop this from happening.

If I were dishonest, I'd say fix your false problem with IMGate gateways, 
but while I am not, but you should anyway.  :))

Len


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