gistfile1.txt

[user]
    email = xx@xx.com
    name = User

[sendemail]
    smtpserver = /usr/bin/msmtp
    smtpserveroption = -a
    smtpserveroption = work
    from = xx@xx.com
    smtpUser = xx@xx.com
    confirm = auto
    smtpEncryption = tls
    suppresscc = self

$ git send-email --to="mail-list" HEAD~1
(mbox) Adding cc: User <xx@xx.com> from line 'From: User<xx@xx.com>'

From: xx@xx.com
Cc: User <xx@xx.com>
.. omitted
X-Mailer: git-send-email 2.17.1