I wrote:
I am not familiar enough with DMARC and Mailman3 to know
whether there are any work-arounds available for this issue
or not. There aren't any great solutions to it, in any
case.
A little further reading tells me that Mailman supports a
few possible work-arounds¹. I've mentioned these to the list
admins and will see if any of them are worth testing².
¹
https://wiki.list.org/DEV/DMARC
² Only 'Replace From:' or 'Wrap message' would be reasonable
for this list, IMO. If it were @aol.com causing this
trouble, I'd be more inclined to suggest the 'Discard'
option. ;)
--
Todd
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Even moderation ought not to be practiced to excess.