[Pkg-exim4-users] Auto-reply mails and the envelope

[Marc Haber]

On Thu, Feb 28, 2008 at 11:25:36AM +0000, Neil S. Briscoe wrote:
> I have a .forward file containing an exim-filter script which works.
> 
> The reply message ends up in the mail queue.
> 
> However, due to the smarthost that is used, the message is never sent.
> 
> This appears to be because the envelope from is null, that is <>.
> 
> I can't seem to find a way to set this to be the same as the from 
> address I'm setting.

The vacation/mail mechanism of exim's filters always send with an
empty envelope to avoid mail loops just in case the vacation message
itself would bounce.

I am afraid that you either need to arrange with your smarthost
operator to have them allow empty envelope (which they need to do to
be RFC compatible, but they'll say spam bot security yadda yadda), or
generate your messages with a different mechanism.

Greetings
Marc

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