Deliverability
Mail-Tester
Simple send-to-test-address spam score checks.
overview
Mail-Tester gives senders a generated address, analyzes the received message, and returns a spam score with authentication and content diagnostics. It is not a full monitoring suite, but it is one of the simplest ways to catch obvious DNS, SpamAssassin, and content issues before a campaign sends.
deliverability
Not a sender. Scores one message at a time and helps identify obvious authentication, blacklist, and SpamAssassin issues.
best for
Developers and marketers who need a quick preflight check for a specific message.
not great for
Teams that need continuous DMARC monitoring or inbox placement reporting.
pros
- › Very fast manual diagnostic
- › Free tests cover occasional checks
- › Paid API and iframe options exist for product integrations
- › Prepaid test packs do not expire
cons
- › No ongoing monitoring unless integrated manually
- › One test does not represent every mailbox provider
- › Interface is intentionally simple rather than polished
Features at a glance
| API | Yes |
| SMTP | No |
| SDKs | None |
| Webhooks | No |
| Templates | none |
| React Email | No |
| Batch send | No |
| Scheduled send | No |
| Suppressions | No |
| Multi-tenant | No |
| Inbound parsing | No |
| Event stream | No |
| Idempotency keys | No |
| Dedicated IP | No |