Scanning is the process where DME checks to see if a change has occurred in the collaboration system or in DME, affecting the device being processed. If a change has occurred in the collaboration system, DME will notify the device about the change as a push (if enabled), and raise a "flag" that a change has occurred. This flag is detected if the device is pushed or polls for changes, and removed when the synchronization has taken place. You can monitor the scanning process in the sections Clients, Process, History, and Pending. If the user initiates a manual synchronization, a full scan is always performed.
A change may occur in several different areas, called resources:
E-mail: Has a new e-mail arrived in the user's mailbox, or has a change in the e-mail folder structure occurred? Has an out-of-office rule been created, changed, enabled, or disabled?
System information: Has a change been made on the DME server, which affects the device? This could be a change in a setting, an application block, or a Mark for Installation.
Calendar: Has a meeting been created, deleted, accepted, declined, or updated?
Contact: Has a contact been created, deleted, or updated?
To-do: Has a to-do been created, deleted, or updated?
Files: (requires special license) Has any file sync. rule detected that one or more files should be synchronized?
Notes:(Domino only) Has a notebook or a note (also known as a journal) been created, deleted, or updated?
RSS: (requires special license) Has an RSS feed been created, or have new articles appeared in an existing feed?
One or more scanning schemes can be set up for each resource individually.
In order to know if a change has occurred for any of the resources except System information, Files, and RSS, DME scans the mailbox of the user who holds the device. The mailbox scan can take place in one of two ways:
DME_Server technical user scan: A technical user, usually called DME_Server, has access to all mailboxes. The mailboxes are then scanned for changes through this user. The technical user is specified in the Collaboration section of the Server configuration panel (see Collaboration).
Scan using individual users: The credentials of each user are used for scanning the mailbox of the user in question. The advantage of this is that no single user (the technical user) has access to all mailboxes. However, the credentials of each user must be stored in the DME database (heavily encrypted). See also the description of the Store user password field in the Authentication section of the Server configuration panel (see Authentication).
The choice of mailbox scan method will depend on company policies. See collaboration system integration documentation for information about how to set up Domino or Exchange to match the selected choice.
If a change has occurred, a notification may be sent to the device - depending on the schedule setup (see Notification).