Checking the Certificate Valid Period
The validity period of a certificate used with S/MIME is verified when you send e-mail.
You can change the timing at which the valid period is checked using a web browser from networked computers. (We use Web Image Monitor installed on this machine.)
Operation mode | Description |
|---|---|
Security Priority | The validity period is verified at the following timings: User Certificate (a) When the address is selected (b) When [Start] is pressed Device certificate (c) When the first address is selected (d) When [Start] is pressed |
Performance Priority | Performing (b) and (c) are omitted. It may take longer to verify the validity period if the address is selected or [Start] is pressed. To shorten the time, select "Performance Priority". |
Open a web browser from a networked computer, and then log in to Web Image Monitor as the network administrator.
For details on how to log in, see Administrator Login Method.
Point to [Device Management], and then click [Configuration].
Click [S/MIME] under "Security".
In "Operation Mode", select [Security Priority] or [Performance Priority].
Click [OK].
Log out.
For details about logging out, see Administrator Logout Method.
If a certificate was valid when transmitted but has expired before the e-mail is retrieved from the mail server to the client computer, the e-mail may not be retrieved.
If an error occurs outside the validity period of the certificate when an S/MIME e-mail is sent automatically using Memory Transmission or at a specified time, the error will be reported by plaintext e-mail to the e-mail address of the sender or administrator. The error details can be viewed in the job log. When using S/MIME, be sure to enable the job log collection function. For details about viewing the logs, see Managing Log Files.