That worked!
I apologize for needing to ask for help on this. I am very appreciative of how quickly and accurately my issues were resolved.
On Thu, Jan 6, 2022 at 5:23 PM Mark Sapiro <mark@msapiro.net> wrote:
On 1/6/22 12:52 PM, Stephen Daniel wrote:
Sendgrid requires that the "From:" address on any email reference an authenticated domain.
In the old mailman2 implementation, emails sent by mailman are listed as
From: <human name via LISTNAME> LISTNAME@LISTDOMAIN.org
Reply-to: <human name> sender@senderdomain.com (the original email's
sender)
Sendgrid would be happy with this, because LISTDOMAIN.org is a validated domain.
However, in my mailman3 implementation, the From: header lists the
original
email's sender. Sendgrid rejects this because the original email's sender's address is not one of the validated domains.
How do I configure mailman3 to generate headers in the same style as the old mailman2 implementation?
In the list's Settings -> DMARC mitigations, set DMARC mitigation action to Rrplace From: with list address and DMARC Mitigate unconditionally to Yes.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
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