Policies - Configuring Attachment Management Policies

This page describes how to configure an Attachment Management policy. This requires that you've already configured an Attachment Management definition to apply to the policy. See the Configuring Attachment Management Definitions page for full details.

Only one Attachment Management policy can be applied to any given message. If you have multiple policies with the same From and To variables, only one of these will take effect.

To configure an Attachment Management policy:

1. Log in to the Mimecast Administration Console.
2. Select the Policies | Gateway Policies menu item.
3. Click on Attachment Management. 
4. Click on either the:

• • • Policy to be changed.
    • New Policy button to create a policy.

5. Complete the Options section as required:

Field / Option	Description
Policy Narrative	Provide a description of the policy to allow you to easily identify it in the future.
Set Attachment Management Policy	Use the Lookup button to select the required Attachment Set definition for the policy.

6. Complete the Emails From and Emails To sections as required:

Field / Option	Description
Addresses Based On		Specify the email address characteristics that the policy is based on. This option is only available in the "Emails From" section. The options are: The Return Address (Mail Envelope From): 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). The Message From Address (Message Header From): Applies the policy based on the masked address used in the message's header. Both: Applies the policy based on either the Mail Envelope From or the Message Header From whichever matches. When both match, the specified value for the Message Header From will be used.
Applies From / To		Specify the sender characteristics the policy is based on. For multiple policies, you should apply them from the most to the least specific. The options are: Everyone: Includes all email users (i.e., both internal and external). This option is only available in the Emails From section. Internal Address: Includes only internal organization addresses. External Address: Includes only external organization addresses. This option is only available in the Emails From section. Email Domain: Enables you to specify a domain name to which this policy is applied. The domain name is entered in the Specifically field. Address Groups: Enables you to specify a predefined directory or local group. The group is selected from the Profile Group field. Click on the Lookup button to specify the group it is applicable to. Click on the Show Location field to display the path of the directory group or profile group. Address Attributes: Enables you to specify a predefined Attribute. The attribute is selected from the Where Attribute drop-down 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 Address: Enables you to specify an SMTP address. The email address is entered in the Specifically field.

7. Complete the Validity section as required:

Field / Option	Description
Enable / Disable	Use this option to enable (default) or disable a policy. Disabling the policy allows you to prevent it from being applied without having to delete or backdate the policy. Should the configured date range of a policy be reached, the policy will become disabled automatically.
Set Policy as Perpetual	Specifies that the policy's start and end dates are set to Eternal, meaning the policy never expires.
Date Range	Specify a start and end date for the policy. This automatically deselects the Eternal option.
Policy Override	Select this option to override the default order in which 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-Directional	If 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 for the policy. These only apply if the source IP address used to transmit the message data falls within or matches the range(s) configured. IP ranges should be entered in CIDR notation.

8. Click on the Save and Exit button.

See Also...

• • • Configuring Attachment Management