Policy
Outlook.com Is Quietly Rejecting Email from Domains Without DMARC
Hacker News: Front Page ·
The Brief
- Outlook.com is reported to be rejecting email from domains that do not have DMARC configured.
- The claim comes from a single mailroute.net blog post; the sources provided contain no further details.
Why it matters
If your domain sends email without a DMARC record, messages to Outlook.com recipients may be rejected instead of delivered.
Who’s affected
- Domain owners and teams sending email to Outlook.com addresses
What to do
- Check whether your sending domains publish a DMARC record and add one if they do not.
- #dmarc
- #outlook
- #microsoft
- #email-authentication