Canon imagerunner advance C5550i User Manual page 981

● Check the conditions and status of the other party.
◼
#835
The maximum number of text lines that can be received with I-fax was exceeded.
● Tell the other party to reduce the number of text lines in the message body and send again.
◼
#838
The license required to use the send function has expired.
● Purchase a license for the send function.
◼
#839
The user name or password set in <Communication Settings> is incorrect.
● Check the user name and password settings for SMTP authentication (SMTP AUTH) in <Communication
Settings>.
Setting E-mail/I-Fax Communication(P. 62)
◼
#841
An encryption algorithm shared with the mail server does not exist for e-mail and I-fax transmission.
● Set <Allow TLS (POP)> or <Allow TLS (SMTP TX)> in <Communication Settings> to <Off>.
Setting E-mail/I-Fax Communication(P. 62)
● Add a common encryption algorithm to the mail server settings.
◼
#842
The mail server requested authentication using a client certificate for e-mail and I-fax transmission.
● Set <Allow TLS (POP)> or <Allow TLS (SMTP TX)> in <Communication Settings> to <Off>.
Setting E-mail/I-Fax Communication(P. 62)
● Change mail server settings so that a client certificate is not requested.
Sending could not be performed because a validation error occurred when validating the TLS server
certificate when sending with SMTP because <Confirm TLS Certificate for SMTP TX> is set to <On>.
● Use the Remote UI to check whether the CA certificate used to sign the TLS server certificate on the SMTP
server side is registered in the machine.
● Check whether the TLS server certificate on the SMTP server side is correct.
● Check whether the TLS server certificate is a self-signed certificate.
◼
#843
There is a great difference between the time of the KDC (Key Distribution Center) server and the time set
in the machine.
● Correct the time of the machine or the KDC (Key Distribution Center) server.
Setting the Date/Time(P. 17)
Troubleshooting
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