Other suggestion...
If I understood, "you" are a hosting company.
You can deny relay, and ask your customers to use their IPS's SMTP.
You they use yours, their messages do this way:
customer's modem >> ISP >> Internet >> Your SMTP >> Destination
And if your customers use the ISP SMTP:
customer's modem >> ISP >> Destination
Less hops, less traffic, more speed.
>
>Tell them to log in to the SMTP server. Most clients can do that with no
>trouble at all. They will still be able to send mail through you as long
>as
>they log in.
>-V
>----- Original Message -----
>From: John Melchiori <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Sent: Tuesday, September 14, 1999 4:02 PM
>Subject: [IMail Forum] Stopping Spam
>
>
> > Here is my problem. I have been found by a spammer who used my system to
> > send his junk. What I need to know is how to stop this. My understanding
>is
> > that I can simply say do not realy mail for everyone and select the
>relay
> > mail for addresses.
> >
> > My problem is that people who host with me and utilize their domain name
>as
> > their smtp come from all over the place and many different isp's. How
>would
> > I indicate an address if I or they do not know what it is?
> >
> > And if I place just my class c in the address would that not prohibit
>them
> > from sending mail thru their domains?
> >
> > I am thoroughly confused!
> >
> > Any assistance would be appreciated.
> >
> > 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.
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