Do you mean you do not know the IP address they will be using?
If that is the case simply select "relay for addresses" and they will be
prompted to login to use SMTP to send mail if they are not using one of the
IP's you have allowed. Most all modern mail clients allow you to do this
easily.
-V
----- Original Message -----
From: John Melchiori <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, August 30, 1999 10:32 AM
Subject: [IMail Forum] Spam Help
> I host dozens of sites and the people who use us for email from these
sites
> use their domain names to send and receive mail.
>
> How do I stop someone from using the servers for sending mail when I do
not
> know the address that the real clients will be using?
>
> John
>
> Please visit http://www.ipswitch.com/support/mailing-lists.html
> to be removed from this list.
>
Please visit http://www.ipswitch.com/support/mailing-lists.html
to be removed from this list.
