Mail Quarantine types

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.
See example - If you want to have all messages to non-existent recipients quarantined.

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.


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

Mail signature seed for multi-server environment

Allows you to skip evaluation of rules when releasing emails in multi-server environment. Enter the same seed value (a string of characters, something like a passphrase) on all server between which you want to establish trust.

Format for attachment envelope

When email message is being released from the quarantine, it is put as an attachment to a new message (attachment envelope) which is then delivered to the recipient. The recipient receives the original message that is being release from the mail quarantine as an attachment. You can use predefined format of the envelope or modify it to your requirements using available variables.

Use ESET Cluster to store all quarantined messages on one node

If you are using ESET Cluster, this option will become available. We recommend that you use this function, because it enables you to keep the Local quarantine file store in one place, the master node.

Master node

Specify which server is the master node of your ESET Cluster. You will then access and manage the Local quarantine on the master node (you can use Mail Quarantine manager from the main GUI or Mail Quarantine Web interface).