Outlook Add-in System Requirements

Learn about the system requirements necessary to use our Outlook Add-in.

Table of Contents

Outlook Add-in System Requirements

Firewall Exceptions

Outlook Add-in System Requirements

  • Microsoft 365 or Exchange Online
  • Microsoft Outlook (latest versions) with no conflicting Outlook Add-ins (consider restricting users' ability to install add-ins, see instructions)
    • Outlook for Windows (classic)
    • Outlook for Windows (new)
    • Outlook for Mac
    • Outlook on the web: managed browser sessions where plugins/extensions are restricted (recommended)
  • A broadband Internet connection

Firewall Exceptions

Please allowlist the following domains in your firewall, as appropriate. (Axiom is an observability tool. Without it our ability to provide support is limited.)

U.S. Tenant

outlook.us.preavaprevent.com
api.us.preava.com
admin.us.preava.com
api.axiom.co

EU Tenant

outlook.eu.preavaprevent.com
api.eu.preava.com
admin.eu.preava.com
api.axiom.co