Email Deliverability Checker
Test how your emails will be handled by major providers. Verify SPF, DKIM, DMARC, BIMI, and MTA-STS policies to predict inbox placement.
Understanding Email Deliverability
Email deliverability depends on multiple authentication and security mechanisms. Different email providers (Gmail, Outlook, Yahoo, Apple) use different algorithms to evaluate sender reputation and authentication records. A domain with proper SPF, DKIM, and DMARC configuration significantly improves the chances of landing in the inbox instead of spam.
This checker simulates how major providers will evaluate your domain's email authentication. Note that actual deliverability also depends on sender reputation, bounce rates, and user engagement metrics that this tool cannot assess.
Hand this off to Mailstinger.
We'll host the policies, rotate the keys, and watch the reports for you. One CNAME and you're done — no spreadsheets, no XML reading, no “what was this DKIM selector again?” moments at 4pm on a Friday.