Domain Spoof Protection

This section allows you to define external and internal domains to be protected from spoofed From: headers intended to impersonate your mail domains. In other words, no incoming messages with a From: user@domains.com will be accepted where domains.com matches the listed domains below.

Please note that you MUST have your local networks listed correctly in Local Networks above in order for this to work properly.

It is recommended that you enable this functionality and use the Create additional entry for all sub-domains feature to cover all of your sub-domains as well.

A new domain can be added by selecting New Spoof Protected Domain.

A new menu will appear with the options to create this new Spoof Protected Domain.

Domain

Enter the domain that is to be spoof protected into the Domain entry box.

Message

When an incoming e-mail is received from a spoofed domain the message in the Message entry box will be attached to the rejected e-mail.

Create additional entry for all sub-domains

Check this box to protect all sub-domains of the top level domain specified.

Once changes have been made click the Create Domain button to continue.

The new domain will be listed on the menu. To edit or delete a domain select the Edit link found to the left of the domain that is to be edited or deleted. A new menu will appear similar to the Spoof Protected Domain Creation menu with the option to save changes or delete the domain. In this example, the a mail with a from address user@guardiandigital.com will be rejected by this mail server. Also, the entry .guardiandigital.com stands for all the sub-domains under guardiandigital.com, like corp.guardiandigital.com.