>Dynamic IP address ranges will be. If you have any ideas I'd love to hear
>them.

IMGate can do pop-before-smtp relaying, which is fully transparent to your 
users and independent of the ip they are on.

I assume you have told all your users to send their outbound mail to 
mail.s5di.com??   All you would need to do is change the A record of 
mail.s5di.com to the ip of IMGate, and you're done.   Users will not know 
the difference, and you can set your IMail to authenticated relay, closing it.

>I also do not see how I could be blacklisted for not requiring my users to
>authenticate

any spammer forging the envelope [EMAIL PROTECTED] will have full relay 
access.

Len

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