Microsoft Teams Experiencing Messaging Delays: Update for Microsoft 365 Users in India

SYSMIC, a certified Microsoft 365 Implementation Partner in Navi Mumbai, is monitoring the latest service advisory from Microsoft regarding disruptions in Teams functionality. As a trusted reseller of email solutions including Microsoft 365, we prioritize keeping clients informed during such events.

Microsoft 365 Status announced an investigation into Microsoft Teams messaging delays and related service issues, with early signs of recovery observed in their systems. The problem impacts various Teams clients, including Windows and mobile apps, and admins can track progress via incident ID TM1200517 in the Microsoft 365 admin center. No full resolution timeline was provided, but telemetry indicates stabilization efforts are underway.

Reports confirm the outage peaked around December 19-20, 2025, with users worldwide noting slow message delivery and feature glitches. Microsoft continues root cause analysis despite partial recovery, advising checks on the admin center for personalized impacts. As of the latest updates, core functions are stabilizing, though some delays may persist in affected scenarios.

Navi Mumbai businesses relying on Microsoft 365 for collaboration should verify status in the admin center under TM1200517 and test alternative channels like email temporarily. SYSMIC offers seamless Microsoft 365 implementation and email solutions support to minimize downtime risks for micro and mid-size firms. Contact our team for proactive setup reviews or hybrid solutions with Titan Email and IceWarp.