On Mon 28/Sep/2020 10:23:03 +0200 Alessandro Vesely wrote:
Does this happen outside of DMARC mitigation? Can you show examples?
I checked a few messages and couldn't find a switched To:. Switched Cc: seems to happen when one of the recipients is the list itself, which is then moved to the last place. (I try to reproduce that behavior with this message.)
Although I have set options to receive both my own messages and duplicates, I only received the postmaster copy of that message. The archive[*] doesn't show the header :-(
The original had:
Cc: Mailman-Developers@python.org, firstname.lastname@example.org