Isode: Harrier 3.3 – New Capabilities
Harrier is our Military Messaging client. It provides a modern, secure web UI that supports SMTP, STANAG 4406 and ACP 127. Harrier allows authorised users to access role-based mailboxes and respond as a role within an organisation rather than as an individual.

![Harrier Inbox view (behind) showing Military Messaging security label and priority parameters; and Message view (in front).](https://www.isode.com/company/wordpress/wp-content/uploads/2023/06/Harrier-M … ⌘ Read more