Microsoft Exchange and Active Directory Blog
New Cumulative Updates for Exchange Server 2013, 2016 and 2019 were released today. Click here to go directly to the downloads (the links may not work directly, just try again later): Exchange Server 2019 Cumulative Update 2, VLSC Download Exchange Server 2016 Cumulative Update 13 Exchange Server 2013 Cumulative Update 23 CUs ... Read more
Microsoft has released a new security update for all currently supported Exchange Server versions. What exactly the problem is with the Exchange Server versions has not been published. The description of the security advisory only states: Microsoft has released an update for Microsoft Exchange Server that provides enhanced security as a defense in depth measure. ... Read more
In January, I already wrote an article about problems with the Outlook connection to Exchange during the migration. In this new article I would now like to mention a few more common causes of problems. DNS server is not a DC During the coexistence of the Exchange servers, it can happen that users cannot transfer mails between the ... Read more
The following e-mail has reached me and if you ask so nicely, I owe you an answer: Dear Frank, I have the following problem: Users in our Exchange organization should not be able to adjust their address book entry themselves. This means editing "Options - General - My account", where they could change e.g. address, telephone number, etc. I have ... Read more
Microsoft has released security updates for Exchange Server today. Specifically, these are the following vulnerabilities: CVE-2019-0817: Microsoft Exchange Spoofing Vulnerability CVE-2019-0858: Microsoft Exchange Spoofing Vulnerability CVE-2019-0817 applies to all currently supported Exchange Server versions (including Exchange 2010). CVE-2019-0858 affects Exchange from version 2013 onwards. Even though the vulnerability is "only" rated as "Important", it ... Read more
Since the last article on Sophos UTM Webserver Protection and Exchange was written a few days ago, I have decided to update the howto. The last article referred to UTM 9.4 and is now almost 3 years old. Therefore there is now a new article with the UTM in ... Read more
In part 2 of this article series, I described the installation of the ELK stack on Debian 9.8. This part is about the configuration of the individual components and the data of the Exchange Server message tracking logs. Introduction In this article, the ElasticStack components and the Exchange Server are configured. This article refers directly to ... Read more
As already announced, I would like to realize dashboards for Exchange Server with Elasticsearch, more precisely, the Elastic Stack (ELK). This part is about the installation of the Elastic Stack on a Debian 9.8 VM. Introduction I have described the installation and configuration in this article so that the environment can be recreated if you are interested. When I ... Read more
Unfortunately, Exchange Server does not offer a build-in option to clearly display the status of the environment or certain performance parameters on a dashboard. Even many monitoring tools quickly reach their limits when it comes to clearly displaying the number of emails received or sent, for example. In this series of articles, I would therefore like to take a look at ELK, or the Elastic Stack ... Read more
Most users manage the absence notifications themselves via Outlook. Before a planned absence, such as vacation, the user enters the desired message and, if necessary, specifies a deputy. In addition, the helpdesk or a user's line manager should usually also be able to enter an absence notification for users; this is usually useful for an unplanned absence, ... Read more
