Apply Secure Messaging Based on the Recipient of a Message

Document created by user.oxriBaJeN4 Employee on Sep 8, 2015Last modified by user.oxriBaJeN4 Employee on Mar 27, 2017
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When using Secure Messaging it is likely that you will want to enforce the feature for messages sent to specific recipients, for example a domain or a named group of recipients. Use this article to learn how to apply Secure Messaging to messages based on the recipient of the message.

 

What You'll Need

 

  • A Mimecast admin account with permissions to the Administration | Gateway | Policies menu.
  • At least one Secure Messaging definition. If you have not already set up a Secure Messaging definition view the following article:

 

Walkthrough

 

  1. Login to the Administration Console and navigate to the Administration | Gateway | Policies menu.
  2. Click on Closed Circuit Messaging from the list of policy types on the page to view of list of any policies already created.
  3. Click the New Policy button from the menu bar.
  4. Enter a description of the policy in the Policy Narrative text box.
  5. Use the Lookup button to select the Secure Messaging definition that should apply when the policy is triggered.
  6. Select which senders and recipients the policy should apply to in the Emails From and Emails To sections.

    Secure Messaging only applies to messages from internal to external recipients. Be sure to consider this when selecting senders and recipients in this section.

  7. In the Validity section optionally set:
    • The date range that the policy should be active, use the Always On button to set all time,
    • Policy Override to force the policy to apply in the situation where there are conflicting policies
    • Source IP Ranges to specify if the policy should only apply when the Mimecast receives a connection from the defined IP's.
  8. Do not set the Bi Directional setting as a Secure Messaging policy is for internal to external messages only.
  9. Click Save and Exit to apply the policy.

 

Next Steps

 

Once the policy is saved any message that matches the sender and recipients specified will be delivered via Secure Messaging.

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