Configuring Digest Sets Definitions and Policies

Document created by user.oxriBaJeN4 Employee on Sep 11, 2015Last modified by user.oxriBaJeN4 Employee on Sep 2, 2019
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Digests Sets are email notifications sent to users that give them control over their personal hold queue. A digest set definition and policy:

  • Control which users or groups receive digest set notifications, and how often they are sent.
  • Reduces administrator support queries and streamlines email delivery.
  • Allows users to receive or block quarantined messages.




Before configuring a definition and policy, consider:

  • The first digest sent to users details all the messages on their hold queue. We recommend clearing the queue before enabling a policy, and informing end users how to work with digests. See the The Digest Email page for full details.
  • Digest sets are only sent to users once.
  • No digest sets are sent if there are no quarantined messages to report.
  • If a user deletes a digest set, they must either:
    • Contact their administrator to release the message.
    • View their personal hold queue via a Mimecast end user application.
  • Messages remain in the hold queue until an action is performed:
    ActionMimecast Personal PortalMimecast for OutlookAdministration ConsoleComments
    ExpiredNNNMessages automatically expire after 14 days by default, the maximum period allowed. You can reduce this by contacting your Account Manager. A message is still available in the archive after it has expired.
    Messages are bounced and removed from the hold queue.
  • Notification Sets Definition and Policy is required to control the notifications sent to users. 


Configuring a Digest Sets Definition


To configure a Digest Sets definition:

  1. Definition listLog on to the Administration Console.
  2. Click on the Administration toolbar button.
  3. Select the Gateway | Policies menu item.
  4. Click on the Definitions button.
  5. Select Digest Sets from the list.
  6. Either click on the:
    • Definition to be changed.
    • New button to create a definition.
  7. Complete the dialog as follows:
    Field / OptionDescription
    DescriptionEnter a description to enable you to identify what the definition is being used for.
    Hold Digest Spam PolicyIf selected, the digest set is applied to inbound messages that trigger a Spam Scanning Definition.
    Hold Digest Attachment PolicyIf selected, the digest set is applied to inbound messages that trigger an Attachment Management Definition
    Hold Digest Content PolicyIf selected, the digest set is applied to inbound messages that trigger a Content Examination or Impersonation Protect definition.
    Send Hold Digest at <hour>Specify the digest set's delivery interval, based on the local time of your Mimecast account. Create multiple definitions if there's a requirement for different frequencies for various user groups. The following table shows the time zone for each of the Mimecast data centers.
    Data CenterTime Zone
    EUGreenwich Mean Time (GMT) / British Summer Time (BST)
    USEastern Standard Time (EST) / Eastern Daylight Time (EDT)
    ZASouth Africa Standard Time (SAST)
    ZAAustralia Eastern Standard Time (AEST)
    OffShoreGreenwich Mean Time (GMT) / British Summer Time (BST)
    Send Hold Digest on <day>Specify the days of the week that digest sets are sent.
  8. Select the Save and Exit button.


Configuring a Digest Sets Policy


To configure a Digest Sets policy:

  1. Log on to the Administration Console.
  2. Click on the Administration toolbar menu item.
  3. Select the Gateway | Policies menu item.
  4. Select Digest Sets.
  5. Either click on the:
    • Policy to be changed.
    • New Policy button to create a policy.
  6. Complete the Options section as required:
    Field / OptionDescription
    Policy Narrative

    Enter a description to enable you to identify what the policy is being used for.

    Select Digest SetSelect a Digest Set definition for the policy.
  7. Complete the Emails From and Emails To sections as required:
    Field / OptionDescription
    Addresses Based OnSpecify the email address characteristics the policy is based on. This option is only available in the "Emails From" section:
    The Return Address This default setting applies the policy to the SMTP address match, based on the message's envelope or true address (i.e. the address used during SMTP transmission).
    Applies From / ToSpecify the sender characteristics the policy is based on. For multiple policies, apply them from the most to least specific. The options are:
    EveryoneIncludes both internal and external users. This option is only available in the "Emails From" section.
    Internal AddressIncludes only internal organization addresses.
    External AddressIncludes only external organization addresses. This option is only available in the "Emails From" section.
    Email DomainEnables you to specify a domain to which this policy is applied. The domain name is entered in the Specifically field.
    Address GroupsEnables you to specify a directory or local group. If this option is selected, click on the Lookup button to select a group from the Profile Group field. Once a group has been selected, you can click on the Show Location field to display the group's path.
    Address AttributesEnables you to specify a predefined Attribute. The attribute is selected from the Where Attribute dropdown list. Once the Attribute is specified, an attribute value must be entered in the Is Equal To field. This can only be used if attributes have been configured for user accounts.
    Individual Email AddressEnables you to specify an SMTP address. The email address is entered in the Specifically field.
  8. Complete the Validity section as required:
    Field / OptionDescription
    Enable / DisableEnables (default) or disables the policy. Disabling prevents the policy from being applied without having to delete or backdate it. The policy is automatically disabled if its configured date range is reached.
    Set Policy as PerpetualSpecifies that the policy's start and end dates are set to "Eternal", meaning it never expires.
    Date RangeSpecify a start and end date for the policy. This automatically deselects the "Eternal" option.
    Policy OverrideSelect to override the default order that policies are applied. If there are multiple applicable policies, this policy is applied first, unless more specific policies of the same type have also been configured with an override.
    Bi-DirectionalIf selected, the policy also applies when the policy's recipient is the sender and the sender is the recipient.
    Source IP Ranges (n.n.n.n/x)Enter any required Source IP Ranges. These only apply if the source IP address used to transmit the message data, falls inside or matches the range(s) configured. IP ranges must be entered in CIDR notation.
  9. Click on the Save and Exit button.

Preventing Email Digests to Distribution Lists


You can prevent messages or digests being sent to external facing distribution lists. Policies can be implemented to use Active Directory attributes to distinguish between user accounts and distribution lists (e.g. "Country", "HomeMDB", or "ObjectCategory"). You must determine a suitable attribute based on your Active Directory configuration. This attribute must be configured in Mimecast and synchronized before it can be used in the relevant policies. Example configurations are below:

Prevent Digests to DL'sCreate a Digest Set policy using an attribute in the "To" field, which specifically belongs to user accounts. Digests are only sent to individual users.
Prevent Inbound Emails to DL'sCreate a Blocked Senders Policy and in the "To" field select an attribute specific to distribution lists. All messages to distribution lists are rejected.


See Also...


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