HowTo: Allow-List CyberHoot’s Mail-Relay IP Address – Mimecast Posted on May 26, 2025May 26, 2025 by Craig Taylor This article will walk you through setting up allow list in Mimecast. The required IP address and Domain name information is found in this HowTo article:CyberHoot Email-Relay IP Addresses, Domains, and Allow-Listing Articles Share this on your social networks. Help Friends, Family, and Colleagues become more aware and secure.