Exchange Server Dashboards: Grafana, InfluxDB, PowerShell, PRTG and Telegraf

Jan Kappen has written a great HowTo on the subject of Grafana, InfluxDB and PowerShell. Jan describes the installation, configuration and use of Grafana and InfluxDB on his blog: Grafana, InfluxDB and Windows PowerShell - Part 1 Grafana, InfluxDB and Windows PowerShell - Part 2 Grafana, InfluxDB and Windows PowerShell - Part 3 Grafana, InfluxDB and Windows ... Read more

Exchange Server: New updates (February 2019)

New updates have just been released for all supported Exchange Server versions, which also fix the critical vulnerability from CVE-2018-8581. The updates should therefore be installed as soon as possible, as an exploit for this vulnerability has existed for some time. Click here to download the updates for Exchange 2010, 2013 and 2016: Cumulative Update 12 ... Read more

Sophos UTM: Monitoring the mail queues

I have already received several emails regarding the monitoring of Sophos EMail Protection. As I also use email protection in my private environment, this topic is also of interest to me. The UTM's Mail Manager already provides a very useful overview, but it is not very practical to have this overview permanently open in the browser. Read more

Exchange DAG: Change database and logfile path

It can happen that the paths or the storage location of Exchange databases and log files have to be changed, for example when changing the storage system. This article is in response to a reader's question about how to do this with as little downtime as possible. There are several options for moving the database and log file paths, ... Read more

Tip: Free S/MIME certificate

Update 25.02.2019: There is a new article here, as this article is no longer valid. Update 29.01.2019: See note/update at the end of the article. DGNcert is not stored as a trusted certification authority in Windows as I claimed. Therefore, please read the update at the end of the article first and then the comments. So far, Comodo has been a reliable ... Read more

Outlook on Windows 7 and Exchange Server 2019

I have now received a lot of questions about Outlook on Windows 7 in conjunction with Exchange 2019. The error and solution have always been the same, so here is a short article about it. Outlook (regardless of the version) on Windows 7 cannot connect to Exchange Server 2019. Outlook then displays this message at startup ... Read more

Active Directory and Exchange Server vulnerable via EWS API

There is currently a security vulnerability in all Exchange Server versions, which makes it possible to obtain domain administrator authorizations via EWS or, for example, to redirect emails. What makes this vulnerability particularly critical is that it can be exploited remotely. The attacker only needs to have access to a mailbox on the Exchange Server. Since the EWS API and often also ... Read more

Exchange 2019: Database Availability Group (DAG)

Exchange 2019 has adopted the familiar principle of the Database Availability Group (DAG). There are no major changes to the DAG. However, something has changed in the databases. The index is now part of the database and no longer ghosts around separately in the file system. Exchange 2019 also offers the option of using SSDs as ... Read more

Exchange 2010: Support ends on 14.01.2020

Just a little reminder: Support for Exchange Server 2010 ends on 14.01.2020. Exchange 2010 has been in the Extended Support phase for some time, so it only receives security updates. From January 14, 2020, there will no longer be any technical support from Microsoft. This means that support requests can no longer be opened and ... Read more