2025年3月15日，微软承认其Email服务Outlook.com和Exchange Online等平台出现了重大故障，问题持续了超过一周的时间。这次故障导致全球大量用户在发送电子邮件时面临延迟和失败的困境。尽管微软标记此问题为“关键服务问题”，并声称已经在一定程度上缓解了影响，但许多用户仍然遭遇“5545.6.0 Corrupt message content”错误提示，实际修复进度不尽如人意 ...

Get help with Outlook on the web – Find detailed instructions to manage every aspect of your Outlook on the web experience. Some shared resources may have limited access during UB’s move to UBmail ...

Microsoft is investigating an ongoing outage preventing Outlook on the web users from accessing their Exchange Online ...

Microsoft is investigating an Exchange Online bug causing anti-spam systems to mistakenly quarantine some users' emails.

Countless folks found themselves unable to read or send email on Saturday ... Downdetector, an online service that tracks tech outages, began getting outages reported for Microsoft Outlook about ...

IT STAFF / ADVANCED: Learn how to enable digital signatures with Outlook on the web, and how to sign and encrypt messages ... will not work for validating a signature (and may not work for ...