Send a test email, read the real deliverability report

How it works

1. Generate your address — one click, no information required. A disposable address shaped like [email protected] shows up, valid for about 30 minutes.
2. Send a test email — from the mailbox you want to evaluate (your sending software, your CRM, your application server…), send any message to that address.
3. The analysis starts automatically — usually within seconds of receipt: SPF/DKIM/DMARC authentication as seen by a real mail server, a network-mode SpamAssassin score, presence on known blacklists, your domain's DNS setup, and the message's shape.
4. Read the report — a score out of 10, with every lost point explained alongside a concrete fix.

Use cases

• Setting up a new sending domain — check that SPF, DKIM and DMARC are properly configured before your first campaign.
• Diagnosing a drop in deliverability — a legitimate email has recently started landing in spam? The report points out exactly what changed (a recent blacklisting, a stricter DMARC policy…).
• Validating transactional sending infrastructure — after switching SMTP servers or providers, confirm the new IP's reputation is clean.
• Comparing before/after a fix — fix a flagged issue, run a new test with a fresh address, and check the score improves.

What the tool doesn't do / limits

• This test reads the real sending chain (authentication as seen by a real MX, sending IP, blacklists) — that's the difference with the draft spam check, which runs locally before sending and sees neither your IP nor your reputation.
• The disposable address only accepts a single message, within the 30-minute window after it's generated. Past that, generate a new one.
• The received message is analyzed then deleted: it is never read by a human, never kept beyond the time it takes to analyze it.
• The DNS check (SPF, DMARC) looks at the sender's visible domain (the From header), not the message's technical envelope.