Email Deliverability Test

Send a real email to the address below. We analyze authentication (SPF, DKIM, DMARC), content (SpamAssassin), blocklists and reverse DNS, then score your setup out of 100. Nothing is stored — your message is analyzed in memory and immediately discarded.

1. Send any email to this unique address

generating…

2. Then come back here — your report appears automatically.

Prefer a check without sending? Use our Authentication Checker (by domain) or the SPF & DMARC generator.

Built & updated automatically by MailTester Ninja — the email verifier that stores nothing. DNS-only, aggregate data, no personal information. · JSON API · RSS