Microsoft Exchange and Active Directory Blog
Microsoft has released a security update for Exchange 2016 CU 10 and CU 11. The update fixes a tampering vulnerability that has been rated as "Important": A tampering vulnerability exists when Microsoft Exchange Server fails to properly handle profile data. An attacker who successfully exploited this vulnerability could modify a targeted user's profile data. To exploit the ... Read more
One of the new Exchange 2019 features are the "Client Access Rules". Client Access Rules can be used to restrict access to Exchange Server based on certain criteria. One use case would be, for example, to allow access to the EAC only from a management network. Unfortunately, the Client Access Rules in the Exchange 2019 ... Read more
I have divided the migration from Exchange 2016 to Exchange 2019 into four articles. To make the articles easier to find, here are the links in the appropriate order: HowTo: Migration from Exchange 2016 to Exchange 2019 (Part 1) HowTo: Migration from Exchange 2016 to Exchange 2019 (Part 2) HowTo: Migration from Exchange 2016 to ... Read more
In the last part of the article series "Migration from Exchange 2016 to Exchange 2019", the uninstallation of Exchange 2016 is prepared and the migration completed. The small Troubleshooting section is dedicated to the most common cause of failed or stopped MoveRequests. During migrations, problems can always occur that could not be ruled out beforehand. The causes can be ... Read more
Sophos UTM 9.6 now also offers the long-awaited support for free Let's Encrypt certificates. Although the UTM only supports the ACMEv1 protocol and therefore cannot request wildcard certificates, SAN certificates with up to 100 DNS names can be requested automatically. Brief overview of Let's Encrypt Let's Encrypt is a certification authority (CA) that ... Read more
In part 3 of the article series "Migration from Exchange 2016 to Exchange 2019", it is now time to migrate the data. Specifically, it is about moving the various mailboxes and public folders from Exchange 2016 to Exchange 2019. I am moving the various mailbox types individually here, if no public folders or shared mailboxes (shares) are used, you can ... Read more
Part 1 of the article series "Migration from Exchange 2016 to Exchange 2019" only described the test environment and the installation of Exchange 2019. Now the more interesting steps follow. This part is about the configuration of Exchange 2019 for co-existence with Exchange 2016. The aim of this article is to create a functional Exchange 2019 server and ... Read more
Sophos has released version 9.6 of the UTM. The update to version 9.6 requires UTM version 9.510-5. The update is version 9.600-5. Here is the list of new features: What's new in UTM 9.6? ATP: New Advanced Threat Protection Library Better performance and protection Certificates: Let's Encrypt Integration Generate and renew Let's Encrypt ... Read more
Now that Exchange 2019 and Windows Server 2019 are available, there is nothing standing in the way of migrating from Exchange 2016 to Exchange 2019. Only the change in licensing could be problematic for some: Exchange 2019 is only available in the volume licensing program. This is the first part of the article series "Migration from Exchange 2016 to Exchange 2019" ... Read more
A reader asked me if and how it is possible to add a link to the OWA login page. In this case, it was about adding a link to the password reset on the login page. At this point, it should be said that it is possible to change the login page, but these changes are made during installation. Read more
