When in doubt, mailbox providers will often send an unauthenticated message, as a customer is more likely to delete spam than miss a real email that could have been useful and meaningful.
All major mailbox providers support DMARC. In fact, implementing DMARC is a signal to these providers that you are a responsible and reliable sender that they can trust.
All major mailbox providers support DMARC. For example:
→ Gmail : To properly configure DMARC, DKIM, and SPF, mobile phone number list messages must be authenticated for at least 48 hours.
→ Yahoo: According to Yahoo's DMARC policy, all emails sent from a @yahoo.com account will be rejected if they are not sent directly from a Yahoo server.
WARNING: Starting February 1, 2024, there will be some changes that may affect sending email from Gmail, Yahoo, and AOL servers. So be sure to check them out .
→ Microsoft Outlook : You’ll need a Microsoft 365 admin center and access to your DNS provider to set this up.
→ AOL: This has a p=reject tag, so it works the same as Yahoo. Keep this in mind if you currently use a cold or bulk email service.
Some other servers do not validate DMARC records, such as…
→ Mailchimp: However, you can add it in addition to SPF or DKIM.
Email recipients
This group will probably benefit the most from a good DMARC policy, as it will ensure that no malicious or spam emails reach their inbox. It will also protect you from spoofing in the “from” field, which can often lead to fraud.
