Email Deliverability Checker

Email Deliverability Checker

Enter a domain or email address to run checks that commonly affect delivery and spam placement:

• SPF — Is your domain authorised to send mail from the right servers? We also check the all mechanism strength (+all, ~all, -all).
• DMARC — Do you have a policy telling receivers what to do with failed authentication? We flag p=none (monitor only) and suggest upgrading to p=quarantine or p=reject.
• MX — Where does incoming mail for this domain go?
• DKIM — Optional: check that a DKIM selector is published (improves deliverability).
• PTR / Reverse DNS — Do your mail server IPs have reverse DNS? Many spam filters reject mail from IPs with no PTR record.
• Blacklist (IP) — Are the domain's mail server IPs listed on Spamhaus ZEN? Listings can cause spam filtering.
• Domain blocklist (DBL) — Is the domain itself listed on dbl.spamhaus.org?
• BIMI — Do you have a Brand Indicators for Message Identification record? Helps show your logo in Gmail and Yahoo.
• TLS-RPT — Do you publish a TLS reporting record so you get notified of TLS connection failures?
• Domain age — New domains are often treated more cautiously; we show age and suggest warm-up if needed.

Use cases

• You've changed email address or domain and people aren't getting your emails.
• Emails are going to spam; you want to see if DNS or blacklist is the cause.
• Quick audit before scaling up email volume.