好的，我现在需要帮用户总结一篇文章，控制在100字以内。首先，我得仔细阅读文章内容，理解主要信息。 文章讲的是微软正在处理一个持续的服务问题，这个问题导致部分用户无法通过Outlook移动端和Mac桌面客户端访问他们的Exchange Online邮箱。问题开始于星期四，并且是间歇性的。微软已经进行了调查，发现根本原因是引入了一个新的虚拟账户。他们尝试重启受影响的基础设施但没有解决问题，于是开始回滚这个变更作为可能的长期解决方案。微软提到这可能会影响一些用户，并且他们正在评估修复时间线。虽然没有透露具体受影响的地区或人数，但这次事件被标记为关键服务问题。 接下来，我需要将这些信息浓缩到100字以内，同时避免使用“文章内容总结”这样的开头。要确保涵盖问题的时间、原因、影响范围以及微软的应对措施。 可能的结构是：微软处理Exchange Online问题，影响Outlook用户，因新虚拟账户导致，正在回滚变更以解决。 这样既简洁又全面。 </think> Microsoft正在处理Exchange Online服务问题，部分用户通过Outlook移动端和Mac客户端无法访问邮箱。初步调查发现问题是由于引入了一个新的虚拟账户所致。微软已开始回滚相关变更以解决问题，并确认这可能对部分用户造成间歇性影响。 2026-3-23 12:30:22 Author: www.bleepingcomputer.com(查看原文) 阅读量:2 收藏
Microsoft is working to address an ongoing service issue that has intermittently prevented some users from accessing their cloud-based Exchange Online mailboxes via Outlook mobile and Mac desktop clients since Thursday.
After investigating the incident (tracked under EX1256020), Microsoft found that the root cause was a newly introduced virtual account.
On Saturday, began working to revert the change as a possible long-term solution to mitigate the impact, after failing to address the problem by restarting the affected infrastructure.
"This issue may intermittently impact some users who are attempting to access the Exchange Online service through the Outlook mobile apps or the new Outlook for Mac desktop client," Microsoft said.
"After further assessment, we've confirmed that the identified change within the Exchange Online service intended to introduce a new virtual account resulted in impact. To remediate this issue, we're disabling the change across the affected environments. Once available, we'll provide a resolution timeline."
While Microsoft didn't share which regions or how many users were affected, it flagged this service outage as an incident, which usually applies to critical service issues with noticeable user impact.
One week ago, Microsoft addressed another Exchange Online outage that was preventing customers from accessing their mailboxes and calendars via Outlook on the web, Outlook desktop, Exchange ActiveSync, and other Exchange Online connection protocols.
On the same day, it fixed a separate issue causing Office.com or Microsoft 365 Copilot web sign‑in access problems due to what the company described at the time as "a high volume of traffic," affecting the Microsoft Copilot desktop app, Copilot in Microsoft Teams, and Copilot in Office apps.
Microsoft also mitigated an Exchange Online service outage in January that intermittently blocked email via the Internet Mailbox Access Protocol 4 (IMAP4) and a similar incident in November that blocked Exchange Online access via the classic Outlook desktop client.
Red Report 2026: Why Ransomware Encryption Dropped 38%
Malware is getting smarter. The Red Report 2026 reveals how new threats use math to detect sandboxes and hide in plain sight.
Download our analysis of 1.1 million malicious samples to uncover the top 10 techniques and see if your security stack is blinded.
如有侵权请联系:admin#unsafe.sh