Microsoft Exchange and Active Directory Blog
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
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
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
This short article is intended to list the most common causes of problems with the Outlook connection to Exchange during migration. Connection problems often occur after a mailbox has been moved to a newer Exchange version. Outlook then often displays one of the following messages: The Microsoft Exchange administrator has made a change that requires Outlook to be restarted. ... Read more
Here is a short article on the configuration of Sophos UTM Email Protection in conjunction with an internal Exchange 2013 / 2016 server. I use these settings privately, most SPAM is reliably filtered, viruses have not gotten through so far. The question about the configuration of Email Protection came from the article "Switching from POP retrieval to MX ... Read more
Important information for Exchange administrators: KB2565063 must be reinstalled on all Exchange Server versions released before October 2018. This currently affects all available Exchange versions and CUs. The background is that the installation files (new installation and update installation) of Exchange have an unpatched version installed and Exchange is therefore still vulnerable to a remote code ... Read more
The September update KB445127 for Windows Server 2016 from 20.09.2018 causes problems on domain controllers in connection with the Exchange GAL (Global Address List). After the update was installed on Windows Server 2016 Domain Controllers, Outlook clients can no longer access the Global Address List: I was also able to reproduce this problem as soon as more than 18 recipients ... Read more
New updates have been released for all Exchange Server versions. Exchange 2010 is also included. Click here to download directly: Exchange Server 2016 CU10 Exchange Server 2013 CU21 Exchange Server 2010 Update Rollup 22 Click here for details of the changes: Exchange Server 2016 CU10 Exchange Server 2013 CU21 Exchange Server 2010 ... Read more
