Using mutt to send an email to eleph...@a.known.domain elicits no NDR,
while doing the same directly via SMTP does, when I manually set the
NOTIFY parameter. I have procmail verbosely logging everything that
fetchmail delivers, and there's nothing coming back when I use mutt.

Why do I need that? My posts to another list disappear silently, unless I
poke them through the SMTP pipe by hand. Maybe if I were properly set up
for DSN, I might receive a clue to the black hole, because the list host
does show "250 DSN" in response to an ehlo.

I have:

$ mutt -v
Mutt 1.5.20 (2009-06-14)
...
SENDMAIL="/usr/sbin/sendmail"

Ah, do I have to recompile mutt, with "-N failure,delay" there, in order
for the following mutt settings to work? [1]:

set dsn_notify="failure,delay"
dsn_return=hdrs

The following postfix config didn't help:

$ postconf sendmail_path
sendmail_path = /usr/sbin/sendmail -N failure,delay

$ postconf mail_version
mail_version = 2.7.0             # My postfix version.

[1] My googling thus far suggests that it "should oughta" work as is,
    because postfix's sendmail default implies limited -N:

    "The built-in default corresponds with "delay,failure"."

    according to:  http://www.postfix.org/DSN_README.html

Does anyone have this working?

Erik

-- 
Arrgh. I just found a Google search result of somebody who was
experiencing exactly the same problem as me, only to find it was me :-(.
                                                   - Read on luv-talk ML.

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