What these Email Verification Status Codes Mean?
When verifying an email address, our system assigns a status code based on the validation results. Below are the possible status codes and their meanings:
| Status Code | Meaning | Possible Reasons / Checks Passed | Usage |
|---|---|---|---|
| Valid ✅ | The email address is valid and can receive emails. |
- Proper email format - Active domain with MX records - Successful SMTP handshake |
Safe for sending emails. |
| Invalid ❌ | The email address is incorrect or non-existent. |
- Typo in the email address - Domain doesn’t exist - No associated mailbox |
Remove from your mailing list to improve email deliverability. |
| No MX Records Found 🛑 | The domain exists but has no mail server configured. |
- The domain is not set up for email services - The domain is inactive |
Avoid sending emails to these addresses, as they won’t be delivered. |
| SMTP Connection Error ⚠️ | The system couldn’t connect to the mail server. |
- The email server is temporarily down - Firewall or network issues - The server rejected the connection |
Retry after some time or contact the recipient through alternative means. |
Understanding these status codes helps you take appropriate action to improve your email campaigns. For more detailed guidance, check our documentation.
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