Konstantin Ryabitsev [off-list ref] writes:
This would require pretending that we're authorized to send mail from the
domain name of the commit author, so this unfortunately won't work (and hence
the reason why GGG does it this way). E.g. say you have:
From: foo@redhat.com
Subject: [PATCH] Fix foo
Would it help to use "Sender:"? When GGG or any other automation
are trying to send e-mail on behalf of the person shown on "From:",
I thought that it is the mechanism for them to use to identify
themselves.