I obtained an explanation from LF about this issue. It is not due to an mailing list configuration change. It results from DMARC, which is a setting for email sender domains that causes receivers to reject email that is allegedly from the domain if it cannot be verified that it really came from it. Since mail to mailing lists break these rules, Mailman and other mailing list software rewrites From headers with DMARC senders so that the messages do not appear to originate from them. Otherwise, the receiver would probably discard the email, since it breaks the DMARC rules.
The most likely reason that we are seeing this often now is that some new domains have turned on DMARC. We can't do anything about this directly, because we don't control DMARC on senders' domains and we don't control email processing on receivers. I wrote the following script to un-rewrite the From: header before passing it to git-am. It isn't perfect but it worked on the few examples I tried. #! /bin/sh tmp=$(mktemp) cat >$tmp if grep '^From:.*via dev.*' "$tmp" >/dev/null 2>&1; then sed '/^From:.*via dev.*/d s/^[Rr]eply-[tT]o:/From:/' $tmp else cat "$tmp" fi | git am "$@" rm "$tmp" _______________________________________________ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev