Email Deliverability Checker

Verify your domain's SPF, DKIM, DMARC, and BIMI records. Catch misconfigurations before they send your email to spam.

Available on Dev and Pro plans

What we check

SPF

Sender Policy Framework

Verifies your DNS includes an SPF record that authorizes your email-sending servers. Checks for common issues like too many DNS lookups (max 10), missing provider includes, and overly permissive policies.

DKIM

DomainKeys Identified Mail

Confirms your domain publishes a DKIM public key and that it's correctly formatted. Validates key length (2048-bit recommended), selector configuration, and record syntax.

DMARC

Domain-based Message Authentication, Reporting, and Conformance

Checks your DMARC policy configuration. Verifies enforcement level (none/quarantine/reject), reporting address setup, subdomain policy, and alignment mode.

BIMI

Brand Indicators for Message Identification

Looks for a BIMI record that displays your brand logo in supporting inboxes. Validates the SVG logo URL, Verified Mark Certificate (VMC) reference, and DMARC prerequisite.

Sample report

Here's what a deliverability report looks like for a partially-configured domain.

example.com — deliverability report

pass

SPF

v=spf1 include:_spf.google.com include:sendgrid.net ~all

pass

DKIM

2048-bit RSA key published at google._domainkey.example.com

warning

DMARC

p=none — monitoring only, not enforcing. Upgrade to p=quarantine.

fail

BIMI

No BIMI record found. Requires DMARC enforcement (p=quarantine or p=reject).

Want to learn more?

Read our complete guide to email authentication — what each protocol does, how to set up the DNS records, and how to debug common failures.

Read the guide Check your domain