I am using a 3rd party email (via GoDaddy and MS Outlook) to send emails from my Shopify site. The email is authenticated (I confirmed via Shopify Admin … see below) and DMARC is valid (checked via the recommended DMARC checker website … see below). No issue with gmail accounts. I have undeliverable emails from Yahoo, Ymail, AOL and RocketMail since implementing the DMARC record on 1/15/2024.
Screen shot from my DNS (from GoDaddy).

I chatted with a Shopify Help person and they said that my SPF and DKIM are working properly since my custom email sending address is authenticated.
Anyone else with this issue and/or have solved it?

