[Pkg-exim4-users] How validate Exim user and password vs sender

[Marc Haber]

On Tue, Feb 10, 2015 at 02:10:29PM -0500, Michael González Medina wrote:
>  I was wondering if it's posible(I think yes, but I don't know
> how... yet.. ;-) ) to validate, user and password VS sender..??

It might be possible in an ACL.

> Because every time that a user authenticate in my mail server in
> order to send a message, I don't know how Exim prevent that user
> from use another [mail from] address(off course.... that another
> address have to be real in my server, due to sender verification is
> working fine so... no real senders are rejected..).

There is no verification to that. Anyone who can authenticate can use
arbitrary sender/From information. If that happens, you can LART from
your logs.

Greetings
Marc

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