We also released a new rule that corrected the wrong campaign verdict for all impacted customers during the incident. Customers with only a 3rd party email address set up as the username of their Microsoft Account will be asked to add a 1st party Microsoft alias to their account before accessing Outlook.com. You might need to set Windows Update to automatically download and install recommended updates. Installing any important, recommended, and optional updates can often correct problems by replacing out-of-date files and fixing vulnerabilities.
However, like any software, Outlook isn’t immune to issues. Just as your files can easily become corrupted, so can your Outlook profile. This usually happens when you've switched versions of Outlook but your profile did not update. Sometimes when a user tries to search in Outlook, it either returns incomplete results, or returns nothing at all, even if you can see the email normally. Most times, this is caused by a corrupted search index, which you can rebuild.
This reliable Outlook PST repair tool can repair large PST files efficiently and https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html quickly, regardless of the severity of corruption. It allows to save the mailbox data from the repaired PST to a new PST file and various other file formats, including MSG, EML, RTF, HTML, and PDF. The error message states that there are some issues with Outlook PST files. This error tends to pop-out when you attempt to launch Outlook. Outlook simply denies the existence of PST file because the file is corrupt and cannot be accessed anymore. Another reason can be Outlook is set to read-only mode, which stops Outlook from accessing the PST file.
When this registry key is set, Outlook will use its own built-in search engine. The built-in search will display the message below to indicate it is not using the Windows Search service. The issues documented in this section have been reported after installing the recent updates listed below. We're investigating the issues and will update this page when a fix is available. In the meantime, please use the workarounds suggested for each https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html issue.
Now, let us move into the solutions to fix the issue of MS Outlook. Position your company at the center of the tech conversation with spotlight articles, executive interviews, and monthly roundup opportunities. Connect with key decision‑makers, build trust, and expand your brand’s authority across the B2B tech space. Save the repaired file to PST, MSG, EML, PDF, HTML or export directly to Office 365. This should get you back to business promptly. Select the corrupted PST or OST using the file picker.
We have multiple tools to help you automatically diagnose an issue, troubleshoot, and fix problems with Outlook. Some customers may not be able to see their Profile, Account or Sign Out options when selecting their picture on the top toolbar. We're aware of an issue where some users see the error message "Your message https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html can't be displayed right now".
Generally, many programs and applications run simultaneously or in the background which can cause interruptions. Therefore, first, restart your system, and second, check the internet connection. Follow the given ways along with their steps to fix the error and access your files. 6) Open the downloaded file and follow the on-screen instructions to install Office 365 again. You can follow some troubleshooting steps to fix this Outlook crash.
I finished the migration for legacy MFA since 1 months but I still have the problem. If none of that worked, I’d restore the server from backup when it was working and see what happens moving forward. If both of those don’t fix it, I’d run a full maintence cycle on the server.
Your searches refer to this catalogue, so that you don't have to check every single folder and email for a term. If Outlook not opening on Windows 10 (https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html) won't open, you can't check your incoming messages or send an outgoing one from your desktop. Existing Hotmail accounts have been permitted to keep their email addresses as well. You can still create a new email address with @hotmail.com as the domain name. As an email client ourselves, we have a clear idea of what a desktop app can do to give you a healthy relationship with email. We are dedicated to providing a clean, user-friendly, email software that is easy to personalize to your workflow.
Trouble shooter came back as there was a problem running the trouble shooter, try looking for other solutions. When Outlook does open, it will send mail fine one minute and then the next minute it will not send any mail. I agree, it is highly unlikely that all the users would suddenly have an issue that isn’t patch related. Outlook opening problems are simple to deal with.
Any previously stated causes could be held responsible for the Outlook closes or crashes issue. So, to solve this problem, let's go over the various approaches. Outlook crashes are never good, but you do not have to face them unprepared. Understanding the root causes and using the right tools can make all the difference. While built-in tools like ScanPST offer a basic Safety net, they often fall short when it comes to rectifying deeper file damage. In addition, you can export directly into Office 365 mailboxes after recovery with no middle step required.