Change how often Mimecast sends notifications and digest emails

How to change the frequency of Mimecast email notifications and digest emails by modifying the Digest Sets policy definition. 

• Mimecast will send an email digest to notify users when emails have been caught and held by the spam filter.
• Each email notification only shows newly held messages. So users will not get multiple notifications for the same held emails.
  
• Users will get options to Release emails and Permit or Block senders in the email notification.
• If no action is taken, messages will expire from the held queue in 14 days.

 Mimecast email digest - You have new held messages

 Change how often Mimecast sends email notifications

You can change how often Mimecast sends email notifications by modifying the Digest Sets policy definition.

Administration - Gateway - Policies - Digest Sets - Definitions

Default Digest Set Definition

Change the "send hold digest at" times
This example will send email notifications three times a day, but you could use a more frequent schedule, e.g. every 3 hours.