Mail Tester

Send an email to the address below and check its deliverability score.

click "Generate"
  1. Click Generate test address — you'll get a unique test-XXX@neutrino.work address.
  2. Send an email to it from the MTA / domain you want to test.
  3. The page auto-loads results when the analysis finishes (usually under 30s).
Use from automation (push webhook) 
TOKEN=$(curl -s -X POST https://mt.neutrino.work/api/v1/tests \
  -H 'Content-Type: application/json' \
  -d '{"webhook":"https://alerts.example.com/mt","sender_domain":"example.com"}' \
  | jq -r .token)

# send a test mail from your monitored MTA
echo "Subject: deliverability check $TOKEN\n\nbody" | sendmail test-$TOKEN@neutrino.work
# the tester POSTs the JSON result to the webhook when analysis completes