Would pop-before-smtp be what you're looking for? It's a mechanism by
which users can only send mails after they've authenticated with the
pop/imap server. We use a package called exact which, upon the user
logging into the pop server (courier-pop, in this case, but it supports
MANY pop servers), it generates a flat file that exim checks as it's
relay list..
Hope this helps!
Bob..
Mirko Grÿffffe4fen wrote:
> hi all,
>
> this whole authentication stuff is running well on my
> system (cram_md5).
> because i´m hosting some domains for different people,
> i need to know how a user can authenticate at exim and
> send mails only by his real email adress.
> so, that also autherized senders can´t fake their
> adresses.
>
> system running is a debian sarge with exim 4.34
> thanks!
>
>
>
>
>
>
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