Assuming they are using dynamic IP dialups, The only way I know of to
accomplish that is to use a POP-before-SMTP configuration - see FAQ
Q0806
On Fri, 16 Jul 1999, Christian Dysthe wrote:
> Hi,
>
> I have been through the documentation several times, and really tried to do
> this myself but I do need some help.
>
> What I want is to let a few people on a dial-up connection use our server to
> relay their mail to any destination. They have set our server as SMTP smarthost
> in their exim configuration. We do not want to open for general relay.
>
> Let's say one person is connected using the ISP foo.net. What I need is to let
> this person use our server to relay his mail, but not someone using ISP
> foobydoo.net.
>
> On this server we have Debian Slink running with exim 2.11.
>
> How can I do this?
>
> TIA
>
> -----------------------------------
> Regards,
> Christian Dysthe
> Email: cdysthe@???
> http://www.bigfoot.com/~cdysthe
> ICQ 3945810
> Powered by Debian GNU/Linux
> -----------------------------------
>
>
> "Clones are people two"
>
>
>
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