Mail Assure Help

Manage Quarantine Filter Settings

In this page you can enable/disable your quarantine and manage your quarantine filter settings for incoming emails.

Important - If you choose to disable your quarantine, all emails detected as Spam will be delivered to your email server unfiltered.

In the Domain Level Control Panel, select Incoming - Protection Settings > Filter settings.

The Filter settings page for your domain is displayed:

The following settings are available:

Setting Description
Manage list of domains and IP addresses with disabled SPF, DKIM, and DMARC checks This link opens a page which allows you to disable SPF, DKIM and DMARC checks for specific domains, IPs or subnets - so that if, for example, an SPF check fails for any of the specified domains or sender IPs, the system will continue to process the message.
Quarantine enabled

Enables/disables the quarantine.

Important - If you choose to disable your quarantine, all emails detected as Spam will be delivered to your email server unfiltered.

Quarantine threshold Every message that has a combined score above this setting will be classed as spam and will be quarantined.
Beneficial to train threshold Every message which breaches this combined scoring threshold will be considered unsure. Messages with a score below this threshold will be delivered.
Sender checks

SPF (Sender Policy Framework) - This is a common check that allows the sender to indicate which IPs are allowed to deliver email for the sender domain. We advise keeping this enabled to block Spam.

DKIM (DomainKeys Identified Mail) - Lets an organization take responsibility for a message that is in transit. The organization is a handler of the messages, either as its originator or as an intermediary. Their reputation is the basis for evaluating whether to trust the message for further handling, such as delivery.

DMARC (Domain-based Message Authentication, Reporting & Conformance) - An email authentication protocol that builds on SPF and DKIM by adding a reporting function that allows senders and receivers to improve and monitor protection of the domain from fraudulent email.

Skip maximum line length check There are strict regulations on allowed line length in emails which are automatically enforced by the email software. Some applications or badly developed scripts do not adhere to the official specifications thereby exceeding the maximum allowed line length. This check can be disabled by ticking this box but we advise keeping it enabled to block Spam.
Beneficial to train notation Text added here is prepended to the subject line of all messages classed as unsure.

Quarantine response

When an inbound message is detected as spam and quarantined, the response you send to the Sender can be Rejected or Accepted.

  • Accepted: the message will be quarantined and the sender will not get a bounce message.

  • Rejected: the message will be quarantined and the sender will get an NDR.

The default and advised setting for incoming mail is 'Rejected'.

Require TLS Settings

By default, all email is securely processed using TLS encryption as long as the sending/receiving server provides support for it.

Using these settings, you can specify that TLS is compulsory for specific senders/recipients; if a TLS connection is unsuccessful the email will not be processed and delivered. See Specify Compulsory TLS Encryption.