Domain spam check
Evaluate SPF, DKIM, DMARC, rDNS/HELO, MX, RBL/SURBL, and optional mailbox analysis.
Advanced check guide
- Generate a temporary inbox address on this service.
- Send a test email from your domain to that address.
- Wait up to 10 minutes for delivery; refresh to see results.
- We analyze headers (SPF/DKIM/DMARC) and content for spam signals.
- Save the inbox token if you want to check results later.
Temporary inboxes expire after 10 minutes. Send one test message per token.