Microsoft is investigating a number of points inflicting e mail synchronization and connection issues when utilizing the basic Outlook desktop shopper.
The primary bug causes “Cannot connect with the server” errors when creating teams in basic Outlook when Alternate Net Companies (EWS) is enabled for the tenant.
In accordance with Microsoft, this happens as a result of the AD Graph name for ValidateUnifiedGroupProperties fails with the next error: “An inner server error occurred. The operation failed. Each AAD and MSGraph shoppers are null or AAD Graph is disabled for this API.”
“The Outlook Staff is working to launch up to date group performance that makes use of REST APIs which is able to handle this problem. We are going to replace this subject as quickly as we all know the REST launch specifics,” Microsoft stated in a lately printed help doc.
Till a repair is offered, Microsoft advises affected customers to create and edit teams utilizing the brand new Outlook shopper or Outlook Net Entry (OWA).
The opposite identified problem is triggering 0x800CCC0F and 0x80070057 when synchronizing Gmail and Yahoo accounts in basic Outlook.
“After altering your Gmail or Yahoo account passwords in basic Outlook you aren’t prompted to check in. There is likely to be different circumstances that result in this identical problem that we’re investigating,” Microsoft stated.
The Outlook staff is working to determine the foundation reason for this identified problem and can share extra particulars as soon as a repair is offered.
Till then, clients are suggested to work across the sync issues by deleting the registry entries for the affected e mail handle beneath the Identities key at ComputerHKEY_CURRENT_USERSoftwareMicrosoftOffice16.0CommonIdentityIdentities within the Home windows Registry Editor.
Microsoft can also be investigating a basic Outlook bug, acknowledged nearly two months after the primary reviews surfaced on-line, that causes the mouse pointer to vanish for some customers. The identical problem additionally impacts some customers of OneNote and different Microsoft 365 apps.
Redmond has requested affected clients to open a help case with the Outlook Help Staff by means of their Microsoft 365 admin and submit diagnostic log information to help the Outlook staff with evaluation.
As momentary workarounds, affected customers can click on an e mail within the message record when the cursor disappears, which can trigger it to reappear, or swap to PowerPoint, click on into an editable space, after which return to Outlook, which can additionally restore the mouse pointer.
If neither of them works, Microsoft stated that restarting the impacted laptop also needs to resolve the problem briefly.
In January, Microsoft addressed one other basic Outlook problem attributable to the December 2025 updates that prevented Microsoft 365 clients from opening encrypted emails.
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