Email Status Code, Message & Advice
| Status Code | Message | Advice |
|---|---|---|
| 304 | Email is valid but recognized as a disposable email (temporary accounts, e.g., Mailinator, 10 Minute Mail). Avoid sending emails. | AMBER |
| 310 | Email is valid but recognized as a spam trap (not intended for real communication). Avoid sending emails. | AMBER |
| 311 | Email is valid but the domain has a catch-all policy, meaning any address at this domain will appear valid. Proceed with caution. | AMBER |
| 312 | Email is valid and belongs to a real user. Safe for sending. | GREEN |
| 313 | Email is valid but is role-based (e.g., admin@, support@, sales@). Often used by teams rather than individuals. Safe for sending. |
GREEN |
| 314 | Email is valid and belongs to a free email provider (e.g., Gmail, Yahoo). Safe for sending. | GREEN |
| 350 | Email is invalid due to syntax errors (not a properly formatted email). Do not send. | RED |
| 352 | Email is invalid and will bounce. Do not send. | RED |
| 353 | Email appears valid, but mail servers are unreachable. Proceed with caution. | AMBER |