If you have a large number of items in any single folder, you may experience performance issues during certain operations. For more information, see Outlook performance issues when there are too many items or folders in a cached mode .ost or .pst file. An out-of-date antivirus program may sometimes cause errors when you try to start Outlook as there may be compatibility issues between your antivirus program and Outlook.
I ran the Classic Outlook Advanced Diagnostics troubleshooter but that did not provide any useful information. I also ran the Classic Outlook Calendar Check troubleshooter, but that was useless. The first file in the report said that the troubleshooter could https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html not connect because Outlook was not connected to an Exchange server. We often install Add-ins in Outlook to enhance Outlook’s functionality.
This means Outlook will run with limited features and without any add-ins enabled. After that, Outlook will check for and install any available updates. Once the Outlook update process is complete, reopen the Outlook application.
While Outlook has limited built-in options, they often fail when dealing with severely damaged or orphaned files. It enables you to recover data from damaged OST files and convert them into accessible PST format, preserving the original folder structure and formatting. ScanPST.exe is a useful tool that can help you repair and restore corrupt or damaged PST file. However, it may fail if the PST file is severely corrupt, oversized (larger than 2 GB), and/or encrypted. In such cases, you use an advanced Outlook PST repair tool, such as Stellar Repair for Outlook, to repair severely damaged and/or large PST file with complete integrity and precision.
Rollout of the fix to all users will take few weeks, so, some users may see the fix applied by the end of September. Add an Outlook.com alias to your account and send email to Gmail users using that alias. For more information, go to Add or remove an email alias in Outlook.com. If you're still unable to send or receive email, read how to Fix Outlook.com email sync issues. Some customers may experience a delay when trying to create a new email address, or alias, for their Outlook.com account. If you're having problems sending https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html or receiving email, read how to Fix Outlook.com email sync issues.
Try accessing other websites to confirm that the issue is specific to Outlook Web. Start typing in the search box to find a contact or contact list. Right-click an existing folder and select Create https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html new subfolder. Calendar events can be used for your own personal event, or you can invite others to create an in-person or Teams meeting. To find the item with the attachment, scan the list of items in the thread.
In that case, using a professional tool comes to your rescue. Restart the Outlook application and check if the https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html issue persists. After performing the steps, check if the error persists. Further, start the application again to check if the error has been fixed. It’s also crucial to ensure that the version of Outlook you’re using is compatible with your Windows operating system version.
Originally, the freezing would only occur when I actually tried to do something. So, if I tried to open a message, search my inbox, write a new email, go to the calendar, etc., it would freeze up for about 5-10 seconds at a time. Then would work as normal before freezing up again. The freezing never seemed to occur when I had Outlook open but https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html was not using it.
Each of them is discussed thoroughly further. Here is the next solution for your Microsoft Outlook keeps crashing on Windows. This step will show you how disabling the add-ins can help. There could be many more solutions to this Outlook problem because the causes are diverse. However, this article will go over the simplest solutions to the Outlook crashing problem.
After installing the September Public Update, Outlook 2007 displays mixed languages in the user interface. There’s nothing in particular to warn you about, as there are many informational and diagnostic information there, but reading the entries may lead to a clue about what’s going wrong. To get help and troubleshoot other Microsoft products and services, enter your problem here. To get support in Outlook.com, click here or select Help on the menu bar and enter your query.
We will be delving into exploring the powerful methods to Fix Outlook Site (https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html) Outlook PST files in the following paragraph. Below are some proven methods to repair and restore corrupt, damaged, or inconsistent Outlook PST file. No validation is explicitly done on body-related properties or on subject-related properties, except the implicit low-level validation that this article discusses earlier. The recipient display properties are changed to https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html be consistent with the recovered recipient table. As soon as this operation is complete, other algorithms are run to collect all the orphaned messages and to put them in an Orphans folder. If you do not know where the .pst file is located, follow the steps in How to locate, move, or back up your .pst file.