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Lets start with how big is the profile/ost file? Also what additional software you have installed on the machine, in terms of AV and other scanning tools, as well as Outlook add-ins?
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Lets start with how big is the profile/ost file? Also what additional software you have installed on the machine, in terms of AV and other scanning tools, as well as Outlook add-ins?

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Think I see the issue. The user's mailbox is 6GB in size but they have full control over another users mailbox whos mailbox is 44GB. Combined they are nearly 50GB. I will remove the access to the 2nd mailbox and see if it makes a difference which I'm sure it will.
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Think I see the issue. The user's mailbox is 6GB in size but they have full control over another users mailbox whos mailbox is 44GB. Combined they are nearly 50GB. I will remove the access to the 2nd mailbox and see if it makes a difference which I'm sure it will.

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By recreating the profile without the additional mailbox resolved the issue.
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By recreating the profile without the additional mailbox resolved the issue.

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I have a user that has an Office 365 Outlook 2010 profile set up. For the most part it works fines but every couple of weeks/months it goes through a &quot;Verifying Data Integrity&quot; process which can take up to 1-2 hours to complete. I have recreated this profile a number of times but after a couple of weeks/months this happens again. Is there something else I should be looking at? What is the reason for the data integrity check?
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I have a user that has an Office 365 Outlook 2010 profile set up. For the most part it works fines but every couple of weeks/months it goes through a "Verifying Data Integrity" process which can take up to 1-2 hours to complete. I have recreated this profile a number of times but after a couple of weeks/months this happens again. Is there something else I should be looking at? What is the reason for the data integrity check?

Office 365 Profile &quot;Verifying Data Integrity&quot; happens on a regular basis

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.

Office 365 Profile &quot;Verifying Data Integrity&quot; happens on a regular basis

Office 365 Profile "Verifying Data Integrity" happens on a regular basis