IT Help Desk Technician

Jazz Marie Kaur

Technology and Business Process Advisor

Lee W, MVP

Bert2005

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Not sure where I saw the concern about my .ost file, but my email which is the O365 install from Microsoft 365 is &nbsp;having a problem.<br><br>I am not receiving anymore email since the 29th of August. I have deleted the profiles, didn't help. I tried to change accounts, but I wasn't sucessful. How can I delete the .ost file and rebuild. My email should be in the cloud on O365?
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Not sure where I saw the concern about my .ost file, but my email which is the O365 install from Microsoft 365 is  having a problem.
I am not receiving anymore email since the 29th of August. I have deleted the profiles, didn't help. I tried to change accounts, but I wasn't sucessful. How can I delete the .ost file and rebuild. My email should be in the cloud on O365?

I think my .ost file is corrupted

Office 365 is a group of software plus services subscriptions that provides productivity software and related services to its subscribers. Office 365 allows the use of Microsoft Office apps on Windows and OS X, provides storage space on Microsoft's cloud storage service OneDrive, and grants 60 Skype minutes per month. Office 365 includes e-mail and social networking services through hosted versions of Exchange Server, Skype for Business Server, SharePoint and Office Online, integration with Yammer, as well as access to the Office software. All of Office 365's components can be managed and configured through an online portal; users can be added manually, imported from a CSV file, or Office 365 can be set up for single sign-on with a local Active Directory using Active Directory Federation Services.

Microsoft 365

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.

Outlook

An email client, email reader or more formally mail user agent (MUA) is a computer program used to access and manage a user's email. A web application that provides message management, composition, and reception functions is sometimes also considered an email client, but more commonly referred to as webmail.