Microsoft Exchange and Active Directory Blog
I have already reported on the Sophos UTM Firewall, which is even free for private use. Unfortunately, there was the restriction that the Web Application Firewall previously did not provide Outlook Anywhere support. But now that Forefront TMG has been discontinued, other manufacturers seem to be jumping on the bandwagon and adding Outlook Anywhere support to their products. Read more
Exchange Web Services (EWS) are becoming increasingly important. With the EWS, applications are able to access many of the Exchange functions. The EWS interface has been implemented since Exchange 2007. I know many applications that still access Exchange via MAPI, all these applications will no longer be Exchange 2013 compatible, as the protocol will only be ... Read more
Some time ago I already described a problem with the value "MailNickname", which leads to the address lists not being updated. The same problem can occur with e-mail activated public folders. The background is that in Exchange 2003 times the mail nickname (alias) was still allowed to contain special characters such as spaces etc.. With Exchange 2010 ... Read more
The popular Jetstress tool has been released for Exchange 2013. It can be downloaded here: http://www.microsoft.com/en-us/download/details.aspx?id=36849 Jetstress can be used to analyze database performance so that bottlenecks or performance problems can be identified before the server goes live. Unfortunately, Loadgen is not yet available for Exchange 2013.
Anyone who has followed my howtos (Server 2008R2-Exchange 2010 and Server 2012-Exchange 2013) for an internal certification authority and SAN certificates may also want to issue certificates with a validity of more than 2 years. A validity of more than 2 years can already be specified in the certificate template. However, the certificates are still only valid for ... Read more
In this series of articles, I set up a highly available test environment with Kemp load balancers. As it was a test environment, I was more interested in the function than the optimum. However, there are a few things that can be tweaked to optimize the environment. Here are the most important ones: Switch on stateful failover and reduce HA timeouts: ... Read more
I have created a test environment with Kemp load balancers and an Exchange 2013 DAG, as the posts are a bit longer, I have split them up. To make it easier to find them again, here is a table of contents with the corresponding links: Part 1: Description of the test environment and Exchange 2013 installation Part 2: Configuration of the Kemp load balancers for HA (High ... Read more
In the last part of this series of articles, we test the configured HA environment. The environment has not yet been optimized, but the results are quite impressive. Here you can see that Outlook 2013 no longer connects to the Exchange Server FQDN, but to a value consisting of "Mailbox GUID + @ + UPN Suffix" In the ... Read more
Today the problem occurred that the FileServer replication via DFS over a site-to-site VPN was extremely slow. Normally, the WAN connection has a bandwidth of 6 Mbit/s, which was also achieved when manually copying data. However, the DFS replication was bobbing along at a pitiful 20KBit/s. As this was an initial synchronization of the file servers, it should have been possible with ... Read more
In parts 1, 2 and 3 of this series of articles, we have already installed the Exchange servers, configured the load balancers for HA and created a DAG. Now the Exchange configuration for load balancing and the actual load balancer configuration are still missing to make the Exchange CAS role highly available. We will take care of this in this article. So let's take care of ... Read more
