Hi, This adds a new --header-cmd option to the send-email command, joining in the ranks of '--cc-cmd' and '--to-cmd'. The header-cmd script provided as argument should output 'header: value' lines, such as: X-Debbugs-Cc: someone@xxxxxxxxxxx AnotherHeader: somevalue [...] This change was motivated by the use case of easing collaboration using Debbugs in GNU Guix [0]. [0] https://issues.guix.gnu.org/58813 Thanks, Maxim Cournoyer (2): send-email: extract execute_cmd from recipients_cmd send-email: add --header-cmd option Documentation/config/sendemail.txt | 1 + Documentation/git-send-email.txt | 5 ++++ git-send-email.perl | 38 +++++++++++++++++++++++------- t/t9001-send-email.sh | 21 +++++++++++++++-- 4 files changed, 54 insertions(+), 11 deletions(-) base-commit: 7580f92ffa970b9484ac214f7b53cec5e26ca4bc -- 2.39.2