Email configuration report
Is your domain's email set up to deliver?
One in five legitimate emails never reaches the inbox, usually because of DNS records the sender has never looked at. Enter your domain and get a graded report in seconds. No signup.
Know your DKIM selectors?
DKIM selectors are custom names, so we probe the twenty most common
ones. If yours is unusual, add it here (comma-separated) and it joins
the check. You can find it in the s= tag of any
DKIM-Signature header your domain sends.
Eight checks, one grade
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MX records
Do your mail servers exist, resolve, and point somewhere reachable?
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SPF
Is your sender policy valid, and inside the 10-DNS-lookup limit?
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DKIM
Are signing keys published at common selectors, and strong enough?
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DMARC
Is spoofed mail actually rejected, or only monitored?
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MTA-STS
Can attackers strip TLS from mail in transit to you?
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TLS-RPT
Would you even hear about TLS delivery failures?
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DNSSEC
Are the DNS answers behind all of the above tamper-proof?
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BIMI
Is your logo set up to appear next to your messages?
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Coming soon
Live SMTP probing, blocklist lookups, and a send-us-an-email test that verifies real signatures.