Prohibiting the User from Changing the From Address

Set whether to allow the user to change the sender's E-mail address (From address) for E-mail TX.

Select [Network] - [E-mail Setting] - [E-mail TX (SMTP)] - [Detail Settings] - [Change From Address Setting] in administrator mode of Web Connection (or in [Utility] - [Administrator] of this machine), and configure the settings. For details, refer to [E-mail TX (SMTP)].