DMARC when using your domain name

If you are using your domain name, say lists.example.com

Then your DMARC setting can influence the look of your outgoing email.

DMARC forces mailing lists to alter the From: header

So if your subscriber posts a message, and their domain name has DMARC turned on, Mail-List.com will alter the From: header

For example, Yahoo has DMARC turned on, telling the world that any email from a Yahoo address, must come from it's list of designated IP addresses.

Instead of

From: Suzi  Q <SuziQ@yahoo.com>

Mail-List.com changes that to

From: Suzi  Q (SuziQ at yahoo.com) <youremailgroup@lists.example.com>

Where youremailgroup is the name of your mailing list.

If DMARC is turned on for your base domain name or lists domain name

That is, the policy is Reject or Quarantine for example.com or lists.example.com

Then the From header needs to be from Mail-List.com and not your domain name.

From: Suzi  Q (SuziQ at yahoo.com) <youremailgroup@Mail-List.com>

Set your lists domain name to a policy=None

To keep your domain name in the From: header

From: Suzi  Q (SuziQ at yahoo.com) <youremailgroup@lists.example.com>