Konica Minolta bizhub C451 - Manual (Page 339)

Network Settings 4
C451 4-94
– Automatically Obtain Certificates
5
Touch [OK], and then touch [OK] in the next screen that appears.
– To cancel changes to the settings, touch the menu item name in the
Bookmark screen to return to the selected screen without applying
the changes to the settings.
The S/MIME details are specified.