MailVitals
Free toolsEarly access
41 checks per scan34 blacklistsSPF, DKIM, DMARC, MTA-STS, BIMINo signup
11The benchTool 11/15 · free

SPF Generator

Compose an SPF record that stays under the lookup limit.

Who sends mail for this domain?

The number beside each sender is what it costs in DNS lookups. The limit is 10 across the whole record, including everything your senders include in turn.

Anything else that sends for you
Sending IP addresses (optional)
What should receivers do with unauthorised mail?
About 0 of 10 lookups

One engine, two surfaces

This tool runs the same check the monitor runs on a schedule. The difference is not the answer — it is that the monitor keeps asking, notices when the answer changes, and tells you what to do about it. All 41 checks and 34 blacklists are covered by the full scan.

More tools

SPF Lookup

Resolve and validate an SPF record, including the 10-lookup limit.

DKIM Lookup

Find and inspect DKIM public keys on any selector.

DMARC Lookup

Read a DMARC policy and judge how much it actually protects.

MX Lookup

List mail exchangers with priorities and resolved addresses.

BIMI Lookup

Check a BIMI record and whether its logo and VMC qualify.

PTR Lookup

Reverse-resolve a sending IP and check forward-confirmed rDNS.

All 15 tools
One check is a snapshot

Deliverability breaks between checks

MailVitals re-runs every check on a schedule and tells you the moment an answer changes — with the fix attached. One domain free, forever.

Monitor this domainSee pricing