[Dovecot] PATCH: sendmail-like DSNs in Dovecot deliver (EX_TEMPFAIL always)

[Steffen Kaiser]

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On Sun, 13 May 2007, Timo Sirainen wrote:

> Since I can't think of any other modes,

I'm going to look into adding LMTP to deliver ;-)
sendmail supports LMTP even for a spawned LDA rather than a LMTP deamon. 
However, I don't know what to prefer.

> Shouldn't it be stderr, not stdout? Although I guess both might work.

Well, I'm not sure. But as far as I know sendmail communicates primarily 
with stdin/stdout with the LDA (as inetd). However, for permanent failures 
both stdout and stderr are joint together. I haven't read the sendmail 
sources well enough to find the actual piece of code, though.

> For now I added the -e parameter. Currently it only works if the
> delivery actually fails. I'm not sure how I should handle rejections in
> Sieve scripts. http://dovecot.org/list/dovecot-cvs/2007-May/008761.html

I think Dovecot should.

Bye,

- -- 
Steffen Kaiser
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