Verifying TLS Server Certificates

You can set the machine to check the validity of the TLS server certificate when the machine is receiving/sending data with POP/SMTP. The machine verifies the certificate by checking the expiration date, certificate chain, and as well as CN (Common Name).
IMPORTANT
The settings for the TLS server certificate verification are available only on the Remote UI (System Manager Mode).
1
Click [Add.Func.] → [Settings] in the [Add.Func.] menu.
The Settings page is displayed.
2
Click [E-mail/I-Fax Settings] on the page shown in step 1.
The E-mail/I-Fax Settings page is displayed.
3
Select the function.
To set the machine to verify the TLS server certificate when receiving data with POP:
1
Select the check box for [Confirm TLS Certificate for POP RX].
To include the CN (Common Name) for the verification, select the check box for [Add CN to Verification Items].
To set the machine to verify the TLS server certificate when sending data with SMTP:
1
Select the check box for [Confirm TLS Certificate for SMTP TX].
To include the CN (Common Name) for the verification, select the check box for [Add CN to Verification Items].
IMPORTANT:
If you do not enable the TLS server certificate verification settings described above, TLS communication may be performed even with an invalid certificate.
NOTE:
If the machine detects a problem with the certificate, communication will not be completed and the error message <TLS Error (POP)> or <TLS Error (SMTP Send)> (error code #0842 for the job log) will be displayed.
4
Click [OK] on the page shown in step 3.
5
Restart the machine.
Turn OFF the machine, wait at least 10 seconds, and then turn it ON.
4HU4-059