Dell C5765DN MFP Color Laser Printer - Manual (Page 473)

Configuration of E-mail Encryption/Digital Signature
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Import a certificate.
Note • You cannot import a certificate that has been already registered in [Local Device] or [Others]. Delete
the registered certificate before importing.
1) Click the [Properties] tab.
2) Confirm that [Machine's E-mail Address] of [Description] is entered.
3) Click [Security] to display the items in the folder.
4) Click [Machine Digital Certificate Management].
5) Click [Upload Signed Certificate].
6) Enter [Password].
7) Enter [Retype Password].
8) Enter a file name you want to import or select a file to import from a dialog box
displayed by clicking the [Browse] button, and then select [Save].
9) Click the [Import] button.
10) Refresh the web browser.
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Configure the certificate.
1) Click [Security] to display the items in the folder.
2) Click [Certificate Management].
3) Select [Local Device] for [Category] and [S/MIME] for [Certificate Purpose], and then
click the [Display the list] button.
4) Select the check box next to the certificate to set.
5) Click the [Certificate Details] button.
6) Click the [Use this certificate] button.
7) Click [Reboot Machine]. The machine reboots and the settings are enabled.
8) Refresh the web browser.
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Enable [S/MIME Communication].
1) Click [Security] to display the items in the folder.
2) Click [SSL/TLS Settings].
3) Select the [Enabled] check box for [S/MIME Communication].
4) Click [Apply].
5) When the right frame on the web browser changes to the machine reboot display, click
[Reboot Machine]. The machine reboots and the settings are enabled.
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Configure the settings for S/MIME.
1) Refresh the web browser.
2) Click [Security] to display the items in the folder.
3) Click [S/MIME Settings] and configure the following settings.
• Message Digest Algorithm
Select a message digest algorithm from [SHA1] or [MD5].
• Message Encryption Method
Select an encryption method for the e-mail message body from [3DES], [RC2-40], [RC2-
64], or [RC2-128] when you send an e-mail from the machine.