Microsoft Exchange and Active Directory Blog
The last article on Sophos XG in conjunction with Exchange is a bit outdated, so here is an updated version. At the moment SFOS 18 is current, I tested version 18.0.4 MR-4. My small test environment is set up as follows: Exchange is set to the hostnames outlook.frankyswebweblab.de for ... Read more
Zevenet Loadbalancer is the successor to Zen Loadbalancer, for which I wrote a howto some time ago. Zevenet Loadbalancer is particularly suitable for test environments as it is quick to install and configure and is also free of charge. So here is an updated how-to on Zevenet and Exchange 2019. The Zevenet load balancer ... Read more
Microsoft has released new security updates for Exchange Server 2016 - 2019. This is a fix for the following vulnerability: CVE-2021-24085: Microsoft Exchange Server Spoofing Vulnerability However, the vulnerability is listed as "Low" severity and an attacker must have Exchange Server credentials to exploit the vulnerability: An ... Read more
I recently fell into this trap, because with time-critical VMs, such as domain controllers, which are operated on VMware vSphere, you have to pay attention to a small peculiarity. Since an incorrect time can have far-reaching consequences, here is a short article on the subject. The following problem has occurred. An NTP server ... Read more
Windows servers may display the message "Why did the computer shut down unexpectedly" at every login if the server had previously crashed. Although the message can be confirmed for the current session, it reappears the next time the user logs on: This small problem occurs when a user who is not the "Administrator" logs on, ... Read more
Grafana, InfluxDB and Telegraf can also be used to create attractive dashboards for statistics or monitoring for the NoSpamProxy e-mail security gateway. For the dashboards, the Windows performance counters for NoSpamProxy can be sent to an InfluxDB using Telegraf. The data can then be displayed on a dashboard using Grafana. Here is an example ... Read more
Exchange transport rules can be used to perform certain actions when receiving or sending emails. For example, mails can be redirected, rejected or provided with a disclaimer using a transport rule. There are many ways to implement certain actions for mails using transport rules, but with many transport rules it can quickly become a little confusing and it is not always clear which ... Read more
2020 is finally over and welcome to 2021 - it can only get better! With this in mind: Happy New Year! I wish all visitors, readers, supporters and friends a happy and healthy new year, may all your wishes and resolutions come true. As the fireworks at the turn of the year had to be largely canceled, there are ... Read more
Once again, the year is drawing to a close. To be honest, I don't look back on 2020 with a single tear, and the reason for that is probably well known. Next year will definitely be better! For now, however, I'll be celebrating Christmas with my family, as far as this is safe and possible. I therefore wish all friends, readers and ... Read more
The latest CUs for Exchange Server for 2020 were released by Microsoft today. They fix the problem that no attachments can be downloaded from other mailboxes via OWA and that Outlook only displayed a maximum of 175 results in cached mode. This limit has now been raised to 1000 results. The previous security updates are ... Read more
