Protection for the Mailbox role tab
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The Virus scan settings drop-down section lets you configure Anti-Virus scan settings.
Enable anti-virus protection for the Mailbox role
Enable Anti-Virus for the Mailbox role.
If this check box is selected, Anti-Virus protection of a Microsoft Exchange server deployed in the Mailbox role is enabled.
If this check box is cleared, Anti-Virus protection of the Microsoft Exchange server is disabled.
The check box is selected by default.
The Object processing settings section lets you configure the actions taken by the application on objects detected during the Anti-Virus scan.
Infected object
The drop-down list Infected object lets you select the action to be taken by the application upon detecting an infected object.
The following options are available:
- Allow. The application delivers the message with the infected object to the recipient unchanged.
- Delete object. The application attempts to disinfect the infected object. If disinfection has failed, the application deletes the infected object and delivers the message to the recipient.
- Delete message. The application completely deletes the message containing the infected object.
Protected object
In the Protected object dropdown list, you can select the action to be performed by the application on detecting a password-protected object.
The following options are available:
- Allow. The application delivers the message with the password-protected object to the recipient unchanged.
- Delete message. The application completely deletes the message containing the password-protected object.
Save a copy of the object in Backup
Saves a copy of the original message in Backup.
If this check box is selected, the application saves a copy of the message in Backup in the following cases:
- Before deleting the message
- Before deleting the attachment
If this check box is cleared, the application saves no copy of the object in Backup.
The check box is selected by default.
The Protection for mailboxes drop-down section allows you to select the mailbox storages in which messages need to be scanned for viruses, and configure the background scan settings and run a background scan.
Protected mailbox storages
The Protected mailbox storages list contains all protected mailbox storages hosted by servers with the Anti-Virus module installed for the Mailbox role.
You can check the boxes corresponding to the storages which should be scanned for viruses.
You can select or deselect all mailbox storages by selecting or clearing the All repositories of mailboxes check box.
Protected public folder storages
The Protected public folder storages list contains all protected public folder storages hosted by servers with the Anti-Virus module installed for the Mailbox role.
You can select check boxes corresponding to the folders which should be scanned for viruses.
You can select or deselect all public folder storages by selecting or clearing the All repositories of mailboxes check box.
The Background scan block of settings allows you to define the settings of the background scan of email messages stored on a mail server and the contents of public folders as well as run the background scan.
Schedule
The Schedule drop-down list lets you select a background scan schedule. The following background scan run modes are available:
- Manually. A background scan is started manually by clicking the Start scan button.
- Daily. A background scan is started daily at the specified time.
- On selected day. A background scan is started on the selected days of the week at the specified time.
- Monthly. A background scan is started once a month on the specified date at the specified time.
Scan message text
Background scan of message content.
If the check box is selected, the application runs a background scan of message content.
If the check box is cleared, the application runs a background scan of attachments only.
The check box is selected by default.
Scan recent messages only
On-demand scan scope limit.
If this check box is selected, the application runs an on-demand scan of messages received (modified on Microsoft Exchange Servers 2013 / 2016 servers) within the number of days specified in the Scan messages received before background scan start but not earlier than (days) before field.
If the check box is cleared, the application runs an on-demand scan for all messages and other objects that are stored in the mailboxes and shared folders specified in the Scan scope field.
Scan messages received before background scan start but not earlier than (days) before
Number of days that has been specified to limit the scope of the background scan to recent messages:
- On Microsoft Exchange Server 2010 the application performs a background scan of the messages received within the last N days.
- On Microsoft Exchange Servers 2013 / 2016, the application performs a background scan of messages and other Microsoft Exchange objects modified within the last N days.
This setting is available if the Scan recent messages only check box is selected.
Limit the scan time
Background scan time limit.
If this check box is selected, the background scan duration will not exceed the number of hours specified in the Stop scan in (hours) field.
If the check box is cleared, the background scan duration is not limited.
The check box is cleared by default.
Stop scan in (hours)
Time (in hours) after the start of a background scan. The scan stops when this time elapses.
This setting is available if the Limit the scan time check box is selected.
Start scan
Clicking this button starts a background scan of mailboxes and shared folders of the Security Server.
When the background scan is running, this section shows the scan progress indicator. The application performs the scan in two steps: it first scans mailboxes, then shared folders. Information about every step is displayed over the progress indicator.
The background scan progress is only displayed when working with Microsoft Exchange Server 2013 / 2016. The progress is not displayed when working with earlier Microsoft Exchange Server versions.
You can stop the background scan manually by clicking the Stop button.
When the background scan is complete, the following information is displayed under the button:
- Date and time of scan completion according to the UTC standard
- Number of mailboxes scanned
- Number of shared folders scanned
The manual start of a background scan is only possible through the Security Server settings. This button is not displayed in the profile settings.
The On-demand scan configuration section lets you configure the on-demand scan settings for email messages and other objects stored in the selected mailboxes and shared folders, and to run an on-demand scan.
Scan message text
On-demand scan of the message body.
If the check box is selected, the application runs an on-demand scan of message content.
If the check box is cleared, the application runs an on-demand scan of attachments only.
The check box is selected by default.
Scan recent messages only
On-demand scan scope limit.
If this check box is selected, the application runs an on-demand scan of messages received (modified on Microsoft Exchange Servers 2013 / 2016 servers) within the number of days specified in the Scan messages received before background scan start but not earlier than (days) before field.
If the check box is cleared, the application runs an on-demand scan for all messages and other objects that are stored in the mailboxes and shared folders specified in the Scan scope field.
Scan messages received before background scan start but not earlier than (days) before
Number of days that has been specified to limit the scope of the on-demand scan to recent messages:
- On a Microsoft Exchange 2010 server, Anti-Virus performs an on-demand scan of the messages received within the last N days.
- On Microsoft Exchange 2013 / 2016 servers, Anti-Virus performs an on-demand scan of messages and other Microsoft Exchange objects modified within the last N days.
This setting is available if the Scan recent messages only check box is selected.
Limit the scan time
On-demand scan time limit.
If this check box is selected, the on-demand scan duration will not exceed the number of hours specified in the Stop scan in (hours) field.
If the check box is cleared, the on-demand scan duration is not limited.
The check box is cleared by default.
Stop scan in (hours)
Time (in hours) after the start of an on-demand scan. The scan stops when this time elapses.
This setting is available if the Limit the scan time check box is selected.
Scan scope
Field that displays the users and shared folders selected for an on-demand scan.
Clicking the 
button opens the Scan scope window in which you can add the users whose mailboxes you want to scan, and also add shared folders. The selected users and shared folders are displayed in the Scan scope field.
Start scan
When this button is clicked, the application starts an on-demand scan of the selected mailboxes and shared folders.
After the on-demand scan is started, a scan progress indicator is displayed in this section. The application performs the scan in two steps: it first scans mailboxes, then shared folders. Information about every step is displayed over the progress indicator.
You can manually stop the on-demand scan by clicking the Stop button.
When the on-demand scan is complete, the following information is displayed under the button:
- Date and time of scan completion according to the UTC standard
- Number of mailboxes scanned
- Number of infected or password-protected objects in mailboxes
- Number of shared folders scanned
- Number of infected or password-protected objects in public folders