New to Mutt, unable to send messages in *any* attempted way

[Kevin J. McCarthy]

On Thu, May 19, 2022 at 01:12:31PM -0500, Derek Martin wrote:
>On Thu, May 19, 2022 at 11:06:38AM -0700, Kevin J. McCarthy wrote:
>> Sorry, this isn't currently possible in Mutt.  The $sendmail variable is
>> handled specially: it's tokenized by space and invoked directly via
>> execvp().  So you won't be able to use arguments with spaces in them inside
>> the variable, or any shell quoting since it doesn't pass through the shell.
>
>Couldn't you do something like the following?
>
>set my_sendmail=/usr/bin/msmtp [...] --passwordeval=$(gpg --no-tty -q -d ~/.user.gpg)"
>set sendmail=$my_sendmail
>
>Don't know, haven't tried it, but as long as the first thing evaluates
>to something that sendmail's tokenization can handle, seems like it
>should work...

$sendmail goes through muttrc evaluation like other variables, but when 
invoked to send an email, the resulting string is tokenized by space, 
'--' and various arguments inserted as needed, and then passed to 
execvp().

Yes, this should be documented and I'll add it to the config option 
shortly.

I don't know why it was written this way, perhaps some security 
concerns, but I agree that it's surprising.

-- 
Kevin J. McCarthy
GPG Fingerprint: 8975 A9B3 3AA3 7910 385C  5308 ADEF 7684 8031 6BDA
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