Directories - Recipient Validation Management

This article contains information on the six types of Recipient Validation offered by Mimecast for inbound emails, including setup instructions in the Mimecast Administration Console.

Recipient Validation is the process of verifying the recipient(s) of an inbound email sent to one of your internal domains from an external sender. Mimecast offers six types of recipient validation, which can be found under Internal Directories when registering a domain.
For full details about Recipient Validation, see the Recipient Validation - Technical Concepts page.

The 6 Types of Recipient Validation

• Accept all inbounds for this domain.
• Use SMTP Call forward to check recipient addresses.
• Use SMTP Call forward with <> to check recipient addresses.
• Accept inbounds for valid Directory users only.
• Accept emails for known recipients only.
• Act as Backup MX.

You’ll need an Administrator role, with Edit Permissions for Users & Groups | Internal Directories in the Mimecast Administration Console.

Walkthrough

1. Log in to the Administration Console.
2. Navigate to Users & Groups | Internal Directories.
3. Right-click the Domain that you want to edit.
4. Click on the Edit Domain menu item.
5. In the Domain Options section, select the Check Inbounds option you want to set from the drop-down list.
6. If you are using the SMTP Call Forward Route or Act as Backup MX methods for your recipient validation, choose the Delivery Route that Mimecast should use to validate that the recipient exists from the SMTP Call Forward Route drop-down list. Alternatively, leave this as the default setting.

   SMTP Call Forward requires Exchange Recipient Filtering to be enabled on your Exchange Server(s). Click here to learn how to configure this.

7. Click Save and Exit to apply your changes.

Immediately after your changes have been saved, all inbound emails received to the domain edited will be subject to the recipient validation method defined here.

See Also...

• • • Recipient Validation - Technical Concepts