Spamjadoo
MTA-STS Checker
Policy mode and whether the policy file matches the live MX. This tool is being built. Leave an address and we will tell you when it is live.
Live now
- MX LookupWhich servers receive mail for a domain, in priority order.
- SPF CheckerParse the SPF record and count DNS lookups against the limit of 10.
- DKIM CheckerFind the DKIM public key at a selector and check its size.
- DMARC CheckerRead the DMARC policy in plain language and flag weak settings.
- Blacklist CheckerTest an IP or domain against the major DNS blocklists.
- Reverse DNS LookupPTR record for an IP, with forward-confirmed check.