On Thu, 28 Jan 1999, Dany Said wrote:
> Hello Glynn,
>
> Glynn Clements wrote:
>
> > Sendmail doesn't have any authentication support built in; you can
> > only control relaying by IP address (or by the hostname to which the
> > IP address resolves).
> >
> > If this is sufficient, I can provide details on sendmail's relay
> > control files (please state which version of sendmail you are using,
> > and whether its the standard distribution or RedHat's package).
>
> I am using sendmail 8.9.1, I am not sure if it is the standard
> distribution because I have not installed it, and have no idea if it was
> changed.
>
> What other options/alternatives do I have to be able to authenticate
> users (name and password) when they relay emails from the internet. I
> would like to have my local users on my machine to be able to relay
> email through the internet.
>
>
> Thanks,
>
> Dany
Dont have a URL handy, but do a search for "pop before smtp". Basically
the idea is that you have your users check their mail with pop first, and
then try to relay mail. You have your mail server keep a list of recent
ip addresses that people pop'd from and allow relaying from those
addresses. You timeout those addresses periodically to keep spammers
away.
We've looked into this extensively and this appears to be the best
solution for what we're (and you're) trying to do.
-d
--
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David E. Wach |
Lead Programmer/System Engineer |
ClipperNet Internet Access Services | "Zeros and ones will take
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[EMAIL PROTECTED] |
http://www.clipper.net |
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