[wplug] ? Limiting SMTP

[Sawders, Daryl]

Is there a way to set up an SMTP relay machine and have it only accept mail from certain "clients" and restrict the destination of mail routed through this relay to a particular domain?

If I can do this I'll be mitigating a security risk to folks that should be "trusted" with routing mail via this pathway and also lessen the impact of a potential mail worm.

Thanks in advance,

   - Daryl -