Sanitizing Headers Before Sending Outbound Email


By design, email headers contain multiple Received headers displaying the path a message takes. These headers often contain private IP addresses and/or hostnames of the machine inside the sender's LAN. Many security pundits argue the benefits of sharing this information with the outside world and urge email administrators to remove these headers before sending an outbound email. After all, IP addresses inside an organization's LAN are of no value to the outside world and can potentially be misused to learn information about a private network.

Xeams allows removing these headers before sending outbound emails. Use the following steps to configure this:

  • Log in as the administrator
  • Click Server Configuration/SMTP Configuration
  • Select the Advanced tab
  • Check Sanitize Outbound Headers
  • Save

Note

This feature is only available in the Enterprise Edition of Xeams with more than 20 users.