Mail Quarantine

The Mail Quarantine manager is available for all three Quarantine types:

Local quarantine

Quarantine mailbox

MS Exchange quarantine

You can see the contents of the Mail Quarantine in Mail Quarantine manager for all Quarantine types. Additionally, the local quarantine can also be viewed in the Mail Quarantine Web interface.


Store messages for non-existent recipients - This setting applies to messages that are marked to be quarantined by Antivirus protection, Antispam protection or based on Rules. When enabled, messages which were sent to recipients that do not exist in your Active Directory are stored in Mail quarantine. Disable this feature if you do not want to keep such messages in your Mail quarantine. When disabled, messages to unknown recipients will be dropped silently.

note_icon_example EXAMPLE

If you want to have all messages to non-existent recipients quarantined (regardless of being marked by Antivirus or Antispam protection), create a specific rule for Mail transport protection with a condition type: Recipient validation result, operation: is, parameter: Contains invalid recipient, and an action type: Quarantine message.

Skip evaluation of rules when releasing emails - If you want to release a message from the quarantine, this message will not be evaluated by rules. This is to prevent the message from being put back into the quarantine, and the released message will be successfully delivered to the recipient. This feature is used only when the Administrator releases the message. If you disable this feature, or if a message is released by a user other than the Administrator, the message will be evaluated by rules.

note_icon_note NOTE

The two settings above are only available for Microsoft Exchange Server 2007 and newer.