The features below keep your email trusted and your people out of trouble, and 36 free tools sit behind them for the one-off checks. Each one explains itself before it asks you for anything.
Check your SPF, DKIM and DMARC in about a minute. We read the public records that decide whether your mail is trusted, give your d…
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ImpersonationEvery mail provider on earth already writes you a daily report about who is using your domain. It arrives as XML that nobody can r…
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ThreatsSend us the email you are unsure about and get a straight verdict, with the exact lines that gave it away quoted back to you. We a…
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Inbox placementSend us the email you are planning to send. We score what trips spam filters, explain each one, and hand back a cleaner version yo…
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Undeliverable mailForward the undeliverable notice and we will tell you, in plain words, whether the address is wrong or something is blocking your …
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ReputationWe check your domain and sending addresses against the lists that quietly route mail to spam, every day, and email you the moment …
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See how your email authenticates today. No account needed for the first check.
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