Where do I need to install the ExSBR Agent for Sender Based Routing?

One of the most discussed problems at our support hotline is, where to install our ExSBR transport agent to implement sender based routing in an Exchange Server organization. This question is easy to answer for most customer situations, but the answers are sometimes hard to understand.

In General, we need ExSBR to be installed on the transport servers, which host external Internet SMTP Send Connectors. These are in general the Send Connectors with the SMTP:* Address Space. As Exchange Server will send all outgoing emails over these connectors, the emails will pass the servers, hosting the SMTP:* connectors. It is not predictable, which server will be used as a bridgehead. Therefore ExSBR must be present on all bridgehead servers of the SMTP:* connectors.

To minimize the required number of ExSBR licenses, you can always limit the number of bridgehead servers on your SMTP:* Send Connectors. To get high availability, we recommend to use at least two servers as bridgeheads in a multi-server Exchange organization.

If you have Exchange Servers with the Edge Transport role in place, then the same rules apply for the Edge Sync Subscriptions with SMTP:* address spaces. In this case, most customers opt for the installation of ExSBR on the Exchange Edge Servers instead of the Hub Transport Servers.

messageconcept exsbr licensing per server messageconcept exsbr licensing per server messageconcept exsbr licensing per server

messageconcept ExSBR is an add-on product for Microsoft Exchange Server. Our software extends the possibilities of your email system with a flexible message routing. ExSBR solves your requirements in the areas compliance and multi-tenancy.

We extend your Exchange Server with an intelligent ruleset to support flexible possibilities to influence the route of your emails to the Internet or to partner organizations in dependence of the sender.

On our download pages you are able to get fully functional evaluation versions of our products. Therefore you have the chance to trial our software for free before purchase without any risk.

In our online shop, you are able to calculate your individual product price, retrieve formal quotes and purchase licenses.