Check SPF, DKIM, DMARC, BIMI and MTA-STS in One Pass
Tool demo · Email Authentication Checker
A short walkthrough of the free WarmInboxes email authentication checker: SPF, DKIM, DMARC, BIMI and MTA-STS for one domain in a single pass, with the optional records marked optional.
Email Authentication Checker
SPF, DKIM, DMARC, MX, BIMI and MTA-STS for one domain in one pass, with the optional ones marked optional.
Run the Email Authentication Checker → Free, no account.