[Pkg-exim4-users] Aliases and 'additional addresses in same delivery'

[Marc Haber]

On Fri, May 23, 2008 at 10:21:55AM +0300, Sebastian Tennant wrote:
> Quoth Marc Haber <mh+pkg-exim4-users at zugschlus.de>:
> >> The manual (info "(exim4)Log line flags") says that lines which
> >> include '->' are 'additional addresses in the same delivery' but the
> >> email is only received at the first address listed
> >> (seb at smolny.plus.com) so what does 'additional addresses in the same
> >> delivery' actually mean?
> >
> > That means that the message was delivered as a single message with
> > three RCPT addresses in the envelope, which is clear because all three
> > destinations are in the same domain.
> 
> Hmm...  interesting.  Can I assume Exim will always slap three addresses
> on the same envelope if the recipents all belong to the same domain?

That's exim's normal mode of operation. It can be massaged to do
things different.

> >> How can I ensure mail is delivered to all three addresses?
> >
> > Educate the MX of smolny.plus.com to do a seperate delivery for each
> > Recipient as it is expected.
> 
> Hmm... very interesting.  So PlusNet's email servers are at fault.
> They're a pretty big ISP in the UK.  I doubt they'll change things just
> for me.
> 
> Have you ever encountered mail servers that only do local deliveries to
> the first address on the evelope before?

That can happen, for example, if POP3-Multidrop is in the game. Some
MTAs deliver a message only once if both deliveries would end up in
the same mail store.

Greetings
Marc

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