Outlook crashes when sending emails after Microsoft Update

Hi Mike,

Thanks for contacting us and sorry for the inconveniences,

One of the most likely causes of Outlook crashing is a conflict with an add-in that is incompatible with the latest version of Outlook. To check if this is the case, you can try to run Outlook in safe mode, which disables all add-ins, and see if the problem persists. To do this, follow these steps:

• Exit Outlook.
• Press the Windows logo key + R to open a Run dialog box.
• Enter Outlook /safe, choose a profile if prompted, and then select OK.
• Try to send an email and see if Outlook crashes or not.

If Outlook doesn't crash in safe mode, it means that one or more of your add-ins are causing the problem. You can then try to disable or update the problematic add-ins by following these steps:

• In Outlook, click the File tab and then head to Options.
• In the Outlook Options window, navigate to the Add-Ins tab.
• At the bottom of the window, select COM Add-ins and then select Go.
• Clear the check boxes for any add-ins that you suspect are causing the issue, and then select OK.
• Restart Outlook and try to send an email again.
• If the issue doesn't recur, you can try to enable the add-ins one by one until you find the one that causes the problem. You can then either uninstall, update, or disable that add-in permanently.

Another possible cause of Outlook crashing is a corrupted or outdated Office installation. To fix this, you can try to repair or update your Office programs by following these steps:

• Type Control Panel in the search box at the bottom of the Windows screen.
• Select Uninstall a program from the Programs group.
• In the list of installed programs, right-click the entry for your Microsoft 365 installation and then select Change > Online Repair.
• Follow the instructions on the screen to complete the repair process.
• Restart your computer and check if Outlook works properly.
• If not, you can also try to install the latest Windows and Office updates by going to Settings > Update & Security > Windows Update and selecting Check for updates.

A third possible cause of Outlook crashing is a damaged or misconfigured Outlook profile. To fix this, you can try to create a new Outlook profile and see if that resolves the issue. To do this, follow these steps:

• Type Control Panel in the search box at the bottom of the Windows screen.
• Select User Accounts > Mail.
• Select Show Profiles.
• Select the profile that you want to remove, and then select Remove. Note: Removing a profile also removes any associated data files. If you're not sure whether the data files are backed up or stored on a server, do not remove the profile. Instead, skip to the next step.
• Select Add.
• Type a name for the new profile in the Profile Name box.
• Enter the user name and the primary SMTP address. Then select Next.
• You might see the message Allow this website to configure alias@domain server settings? Select the Don't ask me about this website again checkbox, and then select Allow.
• When prompted, enter your sign in credentials, and then select OK.
• When Setup is finished, select Finish.

If none of the above solutions work, you can also try to run the Microsoft Support and Recovery Assistant, which is a tool that can diagnose and fix common Outlook issues. To do this, follow these steps:

• Download and install the Microsoft Support and Recovery Assistant.
• Run the tool and select Outlook from the list of apps.
• Follow the instructions on the screen to identify and resolve your Outlook problem.

I hope this helps!

Regards, Sola/alias@domain