On Thu, 15 Jul 1999, Jason Hess wrote:

> If I set relay for local host or local users ...what stops a spammer
> from "spoofing" one of my vaild [email] address??

You mean, like <[EMAIL PROTECTED]>  ;->

> anything?

I know there is one setting in Imail that will allow relay only for "local
users". 

That is probably secure enough, until it gets abused. The problem is -
what are you going to do if (when) it gets abused?  Why not set it up
securely the first time?


As i have said before, relaying mail for someone who is not your customer
is not a good idea. Not on today's internet. 


My suggestion is to relay for:

 1. IP addresses that you own and control, (i.e. on your LAN).

 2. Roaming users based on POP3 authenticate before SMTP send,
    SMTP AUTH, or similar means to authenticate valid users
    and customers.

> thanks all,
> Jason Hess
> Information Access Websites

-bryan


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