Tag Archives: Outlook

Microsoft Outlook 365 or other MS 365 apps are dropping suddenly errors

Posted on 2025-01-13 by guenni

[German]German blog reader Robert contacted me recently by emailed to report that he had run into problems with Outlook and other apps under Microsoft 365 on Windows Server 2016 (and 2019) Terminal Server. Microsoft Outlook, Excel crashes in a certain … Continue reading →

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Outlook: Hangs when copying and GMail connection problems fixed

Posted on 2025-01-12 by guenni

[German]Microsoft announced this week that two problems with Outlook Classic have been fixed. One is the hangs that occurred when copying via Ctrl+C. In addition, a problem with the GMail account connection has been fixed. I'll pull the two topics … Continue reading →

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New Outlook app drops login error 0x80049dd3

Posted on 2024-12-18 by guenni

[German]Since December 6, 2025, some users are reporting login issues caused by Microsoft's new Outlook desktop app for Windows. The app refuses a loging and drops an error 0x80049dd3. Although Microsoft claimed they have fixed it the other day, it … Continue reading →

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Windows 11 24H2 with Outlook and Exchange: AD user accounts are suddenly blocked

Posted on 2024-12-13 by guenni

[German]Recently a blog reader left a comment within this blog, dealing with an issue in Windows 11 24H2 combined with Microsoft Outlook and Exchange. He noticed that user accounts in the Active Directory are being blocked suddenly on a recurring … Continue reading →

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Migration to new Outlook app for enterprise user in April 2026

Posted on 2024-12-10 by guenni

[German]Microsoft actually wanted to start migrating business users to the new Outlook app at the beginning of 2025. Redmond has now announced that this rollout will not take place until April 2026 for business users with an Microsoft 365 Enterprise … Continue reading →

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Prevent migration from Classic Outlook to New Outlook

Posted on 2024-12-09 by guenni

[German]Microsoft plans to switch certain Microsoft 365 user groups from Outlook Classic to the new Outlook app from the beginning of 2025. Some people has developed remediation solutions to prevent this. Here is a solution I came across yesterday.

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Windows 11 24H2: Outlook now with GMail Workspace Syc compatible

Posted on 2024-12-07 by guenni

[German]Google has updated its GMail Workspace Sync so that the program is compatible with Windows 11 24H2. This means that Microsoft Outlook can be used with Google Workspace under this operating system. The fix was announced on December 5, 2024, … Continue reading →

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Windows: Mail app will no longer work from December 31, 2024

Posted on 2024-11-11 by guenni

[German]Brief information for users of Windows 10 (and possibly Windows 11) who are still using the "Mail and Calendar" app as their email client. Microsoft has started the transition to the new Outlook app. Anyone holding on to the old … Continue reading →

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Script to prevent forced switch from Classic Outlook to New Outlook

Posted on 2024-11-10 by guenni

[German]Microsoft wants to switch certain Microsoft 365 user groups from Outlook Classic to the new Outlook app from the beginning of 2025. A reader has written a "remediation script" to prevent this. I'll present it here, maybe someone can use … Continue reading →

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Migration from Outlook Classic to New Outlook starts for business customers at the beginning of 2025

Posted on 2024-11-08 by guenni

[German]Microsoft plans to migrate business customers from classic Outlook to the new Outlook app from beginning of 2025. This has been announced in the Microsoft 365 Admin Center (MessageID MC926895). However, administrators can prevent this via a policy.

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