"We selected Loadbalancer.org for our virtualized Exchange 2010 cluster deployment a year ago. Since then the virtual load balancers have been performing flawlessly. Support is always very speedy in responding to questions. The sales staff has been very helpful as well. Overall we are very happy with our choice, and will gladly recommend them to other customers looking for a similar solution."
Kurt TavaresCity of Tracy
Now, more than ever, your organization requires cost-effective and flexible communication tools. With Microsoft Exchange Server you can achieve new levels of scalability and performance with features that simplify your administration, help protect your communications, and delight your users by meeting their demands for greater mobility.
Microsoft Exchange Server, the cornerstone of Microsoft’s Unified Communications solution, is a flexible and reliable messaging platform that can help you increase productivity with anywhere access to business communications, and safeguard your business with protection and compliance capabilities that help you manage risk.
When deploying Microsoft Exchange Server for high traffic throughput, organizations must look to implement a scalable solution. To scale the deployment of the Microsoft Exchange Server, Microsoft recommends using a hardware load balancer to distribute the traffic among multiple Exchange servers.
There are a number of ways to configure the load balancer for Exchange. For Exchange 2010 we typically recommend using 4 VIPs (HTTP/HTTPS, RPC, IMAP/POP3 & SMTP). For Exchange 2013 and Exchange 2016 we typically recommend using 3 VIPs (HTTP/HTTPS, IMAP/POP3 & SMTP). These configurations are simple to setup but still ensure granular control and health checking of the various Exchange services.
For Exchange 2010 we recommend layer 7 SNAT mode to allow for various persistence (affinity) options. Exchange 2013 & 2016 no longer require persistence so layer 4 (either Direct Server Return mode or NAT mode) is recommended.
The improvements in Exchange 2013 & 2016 make the deployment of a scalable high-availability email cluster a more straight-forward task. Further discussion can be found in this blog post.
Offering incredible power & performance - at entry level pricing. The Enterprise R20 is license restricted to 5 clusters, each with 4 back-end servers. You'll probably never need to upgrade the license, but just in case you do, the transition to unrestricted is seamless, with no downtime or need to swap out your existing hardware.More Information Free Trial
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