嗯，用户让我用中文总结一下这篇文章，控制在100字以内，而且不需要特定的开头。首先，我需要通读文章，抓住主要信息。 文章讲的是微软解决了Classic Outlook用户无法通过Outlook.com发送邮件的问题。问题出现时，用户会收到错误报告，提示邮件未送达。错误代码是0x80070005等。微软解释说，当Outlook.com账户链接到另一个Exchange账户时，问题更频繁。他们已经通过服务器端修复解决了这个问题，并建议用户使用新Outlook客户端或网页版作为临时解决方案。 接下来，我需要把这些信息浓缩到100字以内。确保包含问题解决、影响范围、错误情况以及解决方案。同时，语言要简洁明了，避免复杂的句子结构。 可能的结构：微软修复了Classic Outlook用户无法发送邮件的问题，原因涉及账户链接和错误代码。建议使用新客户端或网页版。 检查字数是否在限制内，并确保没有遗漏关键点。 </think> 微软修复了部分Classic Outlook用户无法通过Outlook.com发送邮件的问题。受影响用户会收到错误报告，提示邮件未送达。问题通常发生在Outlook.com账户与另一个Exchange账户链接时。微软已通过服务器端修复解决问题，并建议受影响用户改用新Outlook客户端或网页版发送邮件。 2026-4-6 19:30:24 Author: www.bleepingcomputer.com(查看原文) 阅读量:6 收藏
Microsoft has resolved a known issue that was preventing some Classic Outlook users from sending emails via Outlook.com.
As the company explained when it acknowledged the issue last week, affected users were being warned that some of their messages hadn't reached intended recipients.
Microsoft said that those experiencing this issue would encounter it more often when the Outlook.com account they used to send emails was an Outlook profile linked to another Exchange account.
Affected users were receiving non-delivery reports (NDRs) with 0x80070005-0x0004dc-0x000524 errors, warning that "This message could not be sent. Try sending the message again later or contact your network administrator," when sending or replying to emails.
Microsoft also added that these errors may also be triggered when the sender's account has an Exchange Online mail contact with the same SMTP address.
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On Friday, the Outlook Team updated the original support document, saying that the known issue has now been fixed with a server-side fix.
"The Outlook Team implemented a service change to address this issue that is in production as of April 3, 2026," Microsoft said.
Microsoft advises those who are still affected by these email delivery issues to use the New Outlook client or Outlook.com on the web to send emails from the affected account. Another temporary workaround is to download the Outlook Address Book for any affected Outlook.com accounts, following the procedure detailed here.
Last month, Microsoft resolved another known Classic Outlook bug that rendered the email client unusable for users who enabled the Microsoft Teams Meeting Add-in.
Microsoft is also investigating a bug that triggers "Can't connect to the server" errors when creating groups in Classic Outlook, and another issue that makes the mouse pointer disappear for some users in Classic Outlook, OneNote, and other Microsoft 365 apps.
Additionally, it's working to resolve Exchange Online issues that have intermittently prevented Outlook mobile and macOS users from accessing their mail for weeks.
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