The Default Sender email address is configured in the OnBase Configuration module, using the Distribution Service Settings dialog box. See Configuring Default Sender Options for more information.
The following progression is taken if authentication is not used:
Initially, the sender who generated the notification will be used.
If that value is null, then the Distribution Service's default sender address value will be used.
If that value is null, then the user who generated the notification will be used as the sender.
When displaying the user who triggered the notification as the sender, leave the Default Sender field empty.
Users who trigger notifications must have valid email addresses configured in OnBase. Otherwise, the notifications are not sent, and the message Server Error: 501 5.5.4 Invalid Address is displayed in the Errors tab of the Diagnostics Console.
The Default Sender setting can be overridden by modules like Workflow and WorkView, which allow you to configure the sender address for notifications.