[MM3-users] Re: Disabled by bounce

On 2023-02-17 21:39, denise.mcgeachy--- via Mailman-users wrote:

Hi all - new to this forum but am trying to work out a similar issue raised by a list member's IT department. I'm a bit out of my depth here and hoping you all can help.

They have recommended:

• When the mailing list relay an email from a member of the list to other members, the email from address should be the mailing list and not the user sending the original email. For example: list-name@mydomain.ca (on behalf of Sally Brown)
• The mailing list should not modify the original email and thus breaking the DKIM signature

I have clicked the DMARC mitigation unconditionally option which seems to solve the second point but haven't managed to have it sent by the list name but not as suggested in the first point. I either get "my email via list@mylist.ca" or list@mylist.ca" Is anyone aware of a setting to do this?

To distribute messages with valid DKIM signatures, I set

remove_dkim_headers: yes

in /etc/mailman3/mailman.cf and add a new DKIM signature for my mailing list domain.

• Jan