Felipe Contreras [off-list ref] writes:
There are no tests for 'envelope-sender', so I don't think it should
be a requirement for this patch to do so....
The fact that the lack of test was pointed out as a problem makes it a
requirement. Others' earlier mistakes are not an excuse for you to do a
poor job.
I do use --envelope-sender when sending patches out via msmtp. What
wonderful things this patch adds am I missing in my current setup?