A free tool to monitor & implement DMARC

DMARC is a standard that prevents spammers from using your domain to send email without your permission — also known as spoofing. Learn why DMARC is important.

We will process reports from major ISPs about your domain's DMARC alignment and turn them into beautiful, human-readable weekly email digests, absolutely free.

This service is provided for free from Postmark — a transactional email service for web apps.