messageconcept ExSBR Email Routing

The Product ExSBR

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.

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Our software ExSBR, the sender based routing agent for Exchange Server, is able to define a non-default path to the Internet or to other systems for every single message. This allows the enforcement of policies for the transport, encryption and signature of messages and the compliance with regulations on your Microsoft messaging system. Additionally, our software adds multi-tenancy to the message exchange in your Exchange environment.

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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.

Our Solutions with ExSBR

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. Beside the examples here, you find more use cases for ExSBR in the solutions section of our website.

In a joined Microsoft messaging system, shared by multiple companies, we assure, that messages between businesses will be scanned for viruses and SPAM the same way as emails, received from the Internet.

If your corporate compliance policies require the inspection of certain messages, we ensure, that even internal emails of your Microsoft messaging system will be scanned by your compliance gateway.

Companies and authorities are often forced by law or compliance rules to exchange data over dedicated closed networks, independent from the Internet. Our software routes messages via these closed systems.

Many organizations encrypt a part of their email traffic with external partners. We take care, that all messages, which should get encrypted according to your policies, will be routed to your encryption system.

If you act in the name of an affiliated enterprise or a partner company, we enable you to send emails from your Microsoft messaging system with a reply address of your enterprise group or partner organization.

In many countries, it is mandatory to sign certain emails to authorities or business partners with an official electronic signature. We forward these messages via certified providers to the recipients.

We offer various software solutions for small and medium businesses, enterprise companies and authorities. You will find an overview of our entire solution portfolio on the next page.

Evaluate ExSBR in Your Environment

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You are able to get a fully functional evaluation version of messageconcept ExSBR. Therefore you have the chance to trial our software for free before purchase without any obligation.

You will get full support from our product experts by email, phone and remote sessions during evaluation. You will receive ExSBR Enterprise Edition with full functionality and no limitation in the number of Exchange Servers or mailboxes.

Success Story

Multi-tenancy in active logistics’ European data center

Our customer active logistics is the European market leader in vertical software solutions for the logistics market. Their software builds and controls logistics chains and organizes large cargo networks. They operate two independent data centers, close to the headquarters and central hubs of several cargo networks in Niederaula in the heart of Germany.

In late 2008 active logistics’ managing director Michael Otto raised two major challenges: “We wanted to unify and consolidate the infrastructures of all subsidiaries. On the other hand our customers wanted us to take the overall responsibility for the ICT operations for our software solutions from a managed desktop to our host systems. Our solutions offer great advantages, especially because we are able to operate the complete ICT infrastructure of our customers.” While the central multi-platform ERP infrastructure supported multi-tenancy from the early beginnings, active logistics was not able to offer the same in the Windows based infrastructure.

The solution was to centralize and standardize the Windows environment. Besides the introduction of central file services and a managed desktop, active logistics implemented a multi-tenant and highly available Exchange Server infrastructure. “We now offer our customers and subsidiaries additional services and are able to reduce manpower requirements at the same time.” says Michael Otto. In Exchange Server active logistics implemented messageconcept ExSBR to control the routing paths of customers’ emails. The customer decided to use ExSBR in Domain Routing mode for most customers. With this configuration, the data center is able to route emails of an entire tenant e.g. to a mail server in the tenant’s on premise infrastructure or to a cloud based service.

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“We have been using ExSBR for five years now. The software proved to be a powerful and very reliable solution for us.”

Michael Otto

Managing Director, active logistics

Typical Industries of our ExSBR Customers

We support business process outsourcing companies with an optimized connection of their messaging systems to the systems of their customers.

Software companies and IT providers benefit from our multi-tenancy solutions in Microsoft messaging systems and the improved provisioning of additional cloud services for dedicated customers.

Our software assures the fulfillment of legal requirements in the email exchange between authorities and government agencies via closed networks.

In the financial sector, we ensure the fulfillment of corporate and legal compliance policies for internal and external email traffic.

Our products are designed from scratch for the usage in global enterprises. We realize efficient operations with a high degree of automation and the optimized integration in existing system environments.

Our software products ExSBR and PeopleSync are used by very different customers worldwide. For our key industries, we have identified the most important solution scenarios based on our products.


Routing by sender’s domain

messageconcept ExSBR changes the Exchange Server default routing. On hub and edge transport servers emails will be routed to different Send Connectors according to the sender’s SMTP domain name. The software makes it possible to setup message routes for different Internet providers or networks. This is the most common usage scenario for many customers.

Routing by group memberships

On hub transport servers emails will additionally be routed according to sender’s group memberships in Active Directory. ExSBR enables you to choose different Send Connectors for specific users or user groups. messageconcept ExSBR even supports nested groups. Therefore you are able to do a role based administration of ExSBR by putting your existing groups into the specific ExSBR groups in Active Directory Users and Computers.

Routing by advanced properties


ExSBR is capable to integrate with Exchange Transport Rules. By using the advanced filtering options of Transport Rules, ExSBR is able to cover almost all routing scenarios, such as routing by email subject or even complex combinations of several filters.

Routing between tenants


ExSBR recognizes tenants by the membership in Exchange Adress Book Policies or by SMTP domains. Messages between two tenants can be routed to an external gateway by ExSBR. The gateway will apply all security policies to the emails, that would also apply for external messages.

ExSBR Editions

The ExSBR Business Edition is a special offer for small and medium businesses to integrate custom message routing based on SMTP domains and AD group memberships in a single-server Exchange Server environment with up to 250 mailboxes.

The ExSBR Standard Edition supports message routing by SMTP domains, AD group memberships and all message criteria, available in Exchange Transport Rules. It is scalable to support huge and complex Exchange Server environments.

The ExSBR Enterprise Edition supports all features of the Standard Edition plus routing between tenants in multi-tenant Exchange Server organizations. It can be installed on an unlimited number of servers in one organization.

Technical Information

Setup and Features


Get more information about software licensing in the dedicated FAQ of our online shop.

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“We rolled ExSBR into our production environment last night, and the results have been nothing short of amazing. If you ever need a reference, please feel free to give them my name.”

Rod Newcomb

Hosted Services Engineer, LightEdge

10 Years ExSBR Software

We celebrate the 10th anniversary of our software ExSBR. Exactly 10 years ago today, the product was first installed at … Read more10 Years ExSBR Software

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Updates for ExSBR 4

Within the last months, we fixed several issues with ExSBR 4 and have released the following bug fixes: [EX-35] – … Read moreUpdates for ExSBR 4

Beyond ExSBR Product Information

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

To get support from a qualified sales or support engineer please send us an email or contact us at one of our hotline numbers.

Beside ExSBR, we also offer messageconcept PeopleSync, the synchronization platform for your contact data.

Preise, Angebote und Lizenzen

In unserem Online-Shop können Sie Ihren individuellen Produktpreis berechnen, formale Angebote abrufen und Lizenzen erwerben.