[Pkg-exim4-users] How to choose a smarthost based on From: address in Exim4

[Ian Kelling]

Marc Haber <mh+pkg-exim4-users at zugschlus.de> writes:

> The fun begins with posteo, they have in total 6 IP addresses for
> posteo.de in DNS, none of which having meaningful reverse DNS. I'd
> expect exim to refuse authentication to those hosts.

You are right, passwd.client doesn't work. I forgot about that. I can't
actually remember if and how I made it work. I send off my mail quickly
without thinking enough about it.

>
> Disclaimer: I have never used SMTP AUTH for machines that are not under
> my control, and I pay attention to proper reverse DNS, so I don't know
> how picky exim is with hosts that are as badly set up as posteo seems to
> be.
>
> If you have experience with getting this to work AND are willing to take
> the heat of users complaining about their setups not working after
> copying your configuration, please by all means get involved and help us
> by writing documentation that the Debian exim4 team can include in the
> package. Up to today, noone has accepted that challenge, that's why
> things are they are today.

Ack. That makes sense.

Sorry for the slow reply. The day I sent my mail, I came down with a
nasty bug and spent a lot of time in bed.