I have already discussed the most common symptoms of Outlook 365 crashing. Part 2: Possible Causes for Outlook 365 Problems Due to the settings on these applications, you may see a mail on one device but not on another. People sometimes install Outlook on many devices and use it on various ones at different times. #Symptom 5: Mails not displaying properly When an Outlook 365 PST file is corrupt, the application will not run, and you will be unable to access any other data.Īnother difficulty you may have is that your contacts received spam emails from your account even though you did not send them anything. If a PST file is corrupt, Outlook will notify you as soon as you launch Outlook. #Symptom 3: Outlook PST files are corrupted Plus, it severely slows down the application's performance and renders it unusable. This is because some add-ins have flaws and can crash the program. When you click the Outlook icon, you may notice the errors failed to start and Outlook has stopped working. #Symptom 2: Outlook not responding or launching When the size becomes too large, Outlook will become slow and not function. It is one of the most prevalent issues and occurs when a huge number of emails, calendars, attachments, and so on create over time and cause PST files to become large. So, here in this part, I have listed some symptoms.

04 How to Repair PST File in Outlook 365? Part 1: Symptoms of Outlook 365 Crashingīefore knowing the reasons why Outlook 365 crashes, you must know which errors show that Outlook 365 is crashing.

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