Can Email-In be used to "ingest" a mailing list?

Right now, I’m struggling with the Email-In feature with a mailman mailing list.

I’ve set up an email account as a subscriber to the mailing list, and the Discourse category checks that address.

But everything is rejecting. Can this new feature be set to check for “list@domain.com” as a recipient (To: or CC:) of the e-mail?

Right now, I get a lot of errors like:

We’re sorry, but your email message to [“foo@bar.com”] (titled Re: [forum] Email-Subject) didn’t work.
None of the destination email addresses are recognized, or the Message-ID header in the email has been modified. Please make sure that you are sending to the correct email address provided by staff.