Canon MF247dw User Manual page 572

#810
When communicating with the POP3 server to send e-mail, an error returned from the server.
● Check whether the POP3 server is set correctly.
● Check whether your mail server and network are running correctly. For more information, contact your
Network Administrator.
#813
The logon name or password that is used on the POP3 server is not set correctly.
● Correctly enter the logon name or password that is used on the POP3 server.
#839
A user name and password that are used for SMTP authentication are not set correctly.
● Set the user name and password correctly.
Configuring Basic E-Mail Settings(P. 359)
Configuring E-Mail Communication Settings(P. 363)
#841
When sending an e-mail, an encryption algorithm that is common to the mail server is not present.
● Clear the [Use TLS for SMTP] check box for the SMTP server.
Configuring E-Mail Communication Settings(P. 363)
● Add the common encryption algorithm to the mail server settings.
When verifying a TLS server certificate to communicate to the SMTP server, a verification error occurred.
● Check that the CA certificate that signed the TLS server certificate on the SMTP server side is registered to
the machine by using the Remote UI.
Verifying Key Pairs and Digital Certificates(P. 446)
● Check that the TLS server certificate on the SMTP server side is valid.
● Check that the TLS server certificate is not a self-signed certificate.
#844
TLS encrypted communication to a POP3 server failed when sending an e-mail with POP before SMTP.
● Check the TLS encrypted communication settings in the POP3 server.
● Clear the [Use TLS for POP] check box for the POP3 server. If the problem persists, clear the [Use POP
Authentication Before Sending] check box, and set the communication setting to a setting other than POP
before SMTP.
Troubleshooting
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