Exchange Server: Error message when configuring an authorization for a group

When configuring mailbox permissions for a group, the following error may occur: The user "testgruppe" was found in Active Directory but isn't valid to use for permissions. Try an SMTP addressinstead. Permissions for groups can only be assigned if it is a security group. For a security group, the values for ... Read more

Exchange Server SE: How can I upgrade to the Subscription Edition?

The end of support for Exchange Server 2019 and 2016 is approaching. Support for both versions will end on October 14, 2025, from which date only Exchange Server SE (Subscription Edition) will be supported. However, upgrading to Exchange SE is much easier this time than before, at least if Exchange Server 2019 is already in use. Here is a ... Read more

New Exchange Server updates (April 2024)

Microsoft hat neue Updates für Exchange Server 2016 und 2019 veröffentlicht. Das Hotfix Update (HU) soll die Probleme der vorherigen Sicherheitsupdates (SU) aus dem März 2024 beheben. Außer den Fixes für die doch recht zahlreichen Probleme des März SU, kommen auch noch zwei neue Features mit diesem Hotfix Update hinzu: Hier geht es direkt zum … Read more

BIMI (Brand Indicators for Message Identification) – HowTo

BIMI steht für „Brand Indicators for Message Identification“ und ist ein recht neuer Standard, welcher Benutzern helfen soll, legitime Mails von Spam und Phishing Mails zu unterscheiden. BIMI soll Unternehmen die Möglichkeit bieten, das Firmenlogo im Posteingang des Empfängers anzuzeigen. Ein recht ähnliches Verfahren, werden Outlook Benutzer kennen, wo das Foto des Absenders in Outlook … Read more

March update can cause domain controller to crash

Like the updates for Exchange Server, the March update for Windows Server also contains a serious error. The update causes a memory leak in the LSASS process, which can then lead to a domain controller restarting or crashing. Only domain controllers are affected by this problem; the problem does not occur on normal member servers. Currently ... Read more

Microsoft announces Office 2024

Microsoft has announced the new Office 2024 version as a purchase license. The new Microsoft Office 2024 does not require a subscription, but can be purchased regularly. According to Microsoft, there will be two versions of Office: Office 2024 and Office LTSC 2024. Office LTSC 2024 will receive five years of support and will be offered in Professional Plus, Standard and Embedded versions. ... Read more

Exchange 2019: March update could cause problems with Outlook search

Yesterday, security updates were released for Exchange Server 2016 and Exchange Server 2019. In connection with Outlook and Exchange Server 2019, there are now increasing reports of problems with the search. Admins are reporting problems on the Exchange Team Blog and in the comments to my post. The search apparently produces the error message ... Read more