Canon imagePRESS C800 Series Troubleshooting Manual page 235

Chapter 1
5) Press [Password] > Enter the password for logging in to the SMTP server > press [OK].
6) Set "Allow SSL (SMTP Send)" > "Display Auth. Screen When Send" > press [OK].
If you want to send encrypted data, set "Allow SSL (SMTP Send)" to "On".
If you want to display the authentication screen when sending, set "Display Auth. Screen When Send" to "On".
[Reference]
Even if you select [On] for "Allow SSL (SMTP Send)", the data will not be encrypted if the SMTP host does not support encryption.
e) Sending without authenticating:
1) Press [SMTP Server] > Enter the IP address or name for the SMTP server > press [OK].
2) Press [E-Mail Address] > Press [Authent./Encryption] > [Off] for "POP Authentication Before Send".
3) Press [Off] for "SMTP Authentication (SMTP AUTH)".
4) Set "Allow SSL (SMTP Send)" > press [OK].
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