System information

How to Enable RPC over HTTP Connectivity

This article refers to Barracuda Message Archiver firmware version 3.5 or higher, and Microsoft

Exchange™ Server.

RPC over HTTP (RoH), also known as Outlook Anywhere, is available

for Exchange Integration in firmware 3.5 and higher, and is required by

Exchange Server 2013. This connection may also be required with

earlier versions of Exchange Server if the Barracuda Message Archiver

cannot reach the Exchange Server directly, for example, if they are

installed in different locations.

In this article:

Enable RoH Capability

Confirm RoH is Available

Troubleshooting

Test Remote Connectivity

Test RoH Connectivity using Outlook

RoH must bind to your email service account; for details

on setting up an email service account, refer to the

following articles:

Creating an Email Service Account for Exchange

Server 2003

Creating an Email Service Account for Exchange

Server 2007, 2010, and 2013

Enable RoH Capability

Use the following steps to enable RoH capability for Exchange integration:

On the page, click .MAIL SOURCES > Exchange Integration Start New Action

Select an action, for example, , and then click .Email Stubbing Add New Server

Enter the Exchange Server details.

Authentication

Basic authentication is required for the Barracuda Message Archiver to successfully connect to the RPC host; NTLM authentication is

not available at this time.

SSL and SSL Certificates

SSL (HTTPS) must be enabled on the RoH proxy server. The RoH proxy server must be using a trusted, third-party certificate. If you

have questions, or have the need to use privately signed certificates, contact .Barracuda Networks Technical Support

Note

If you are already using NTML authentication in your environment, you may want to set your RPC virtual directory to use both Basic and

NTML authentication to avoid Outlook users being prompted for login information at each Outlook session. For additional information,

see the Microsoft TechNet article RPC over HTTP Authentication and Security.

Exchange Server Details

Enter either your mailbox server hostname or your Exchange RPC Endpoint. For Exchange Server 2013, you can also use the