Proton Mail email warmup setup
Documentation navigation
Direct remote SMTP is not available for Proton Mail warmup connections.
MailSlurp uses credentials owned by your account to send warmup messages. The connection is isolated from MailSlurp's own delivery accounts and can also be reused by automated inbox placement.
Direct Proton Mail setup is not available yet. Do not enter unrelated account credentials. Choose another supported sender or use the generic SMTP option only when your provider supplies remote SMTP credentials.
Before you connect
- Use another sender provider until a supported Proton connection is released.
- Confirm that the From address is authorized by the provider.
- Create a dedicated, least-privilege credential for MailSlurp when the provider allows it.
Connect in MailSlurp
Return to the email warmup provider table and choose an available connection.
Connection values
| Connection type | Not available |
|---|---|
| Credential | No supported direct credential |
- Proton Mail Bridge exposes SMTP locally and cannot be reached by MailSlurp's service.
Troubleshooting
- Confirm the credential has sending permission and has not expired or been revoked.
- Confirm the From address or domain is verified with the provider.
- For SMTP, confirm the host, port, security mode, and username match the provider settings.
- Check whether an account security policy blocks SMTP or requires an app password.
- Retry the connection test after correcting the provider setting or rotating the credential.
After connection, see email warmup configuration and resultsfor ramp, schedule, content, placement, pause, and resume guidance.