Remark Web Survey 4 and higher supports the MD5, login and plain forms of SMTP authentication.

Remark Web Survey can interact with email servers that have authentication policies. The following information explains the various types of authentication supported in Remark Web Survey and the requirements needed.

Important Note: Any of these types of authentication will only work with mail servers set up properly to support them. You must setup an SMTP server to accept the desired encryption before that encryption will work with it. Setting up email servers and encryption is outside the realm of Remark Web Survey.

CRAM-MD5
CRAM-MD5 authentication is an authentication algorithm using a challenge-based MD5 encryption. The mail server issues a ticket when contacted, and the relay uses the ticket to encrypt the password using an MD5 encryption. Then the relay encodes the username and encrypted password into a base64
hexadecimal format. This form of authentication requires the Digest:MD5 Perl module and the MIME:Base64 Perl module, both standard in Perl 5.8.

Login
Login authentication is an authentication algorithm that uses base64 encoding. The mail server prompts for both the username and the password, and they are sent to the server encoded in a base64 hexadecimal format.
This form of authentication requires the MIME:Base64 Perl module, standard in Perl 5.8.

Plain
Plain authentication is also an authentication algorithm that uses base64 encoding. The username and password are combined and encoded in a base64 hexadecimal format and then are sent to the mail server.
This form of authentication requires the MIME:Base64 Perl module, standard in Perl 5.8.