Here you determine if and how the device authenticates at the SMTP server. The available values have the following meaning:
- None: No authentication.
- Plain text: Authentication takes place in plain text (PLAIN, LOGIN) if the server requires authentication. If you do not want plain-text authentication, the device uses a secure authentication method.
- Encrypted: The authentication is performed without the password being sent in plain text (e.g. CRAM-MD5) if the server requires authentication. Plain text authentication does not occur.
- Automatic: Secure authentication takes place, if possible. Otherwise the device uses either a plain text authentication or no authentication at all, depending on the server settings.
- Telnet path:
- Possible values:
- None
- Plain text preferred
- Encrypted
- Default:
- Plain text preferred