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Outlook in RDS session hangs.

nav2567
nav2567 asked
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Last Modified: 2017-07-02
We have a Windows 2012 RDS environment with user profile disk configured.  

We have a user who use Outlook in his RDS session.  His Office 365 mailbox is only 3GB.  There is a OST file in his profile disk which grows very fast in 24 hours to a size of 10GB.  After that, his Outlook/RDP session becomes very sluggish and hung..  

Anyidea of why this might happen?

Ed
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Top Expert 2015

Commented:
His RDP session becomes very sluggish because if the OST size can grow that large in 24 hour then it indicated a lot of data transfer and disk read/write activities.

Have you looked at the user's mailbox to see if Outlook actually downloaded new contents?  If not then there is a bug somewhere in the communication causing it to redownload emails, call Office 365 support to have them look at it.  If Outlook did downloaded new contents then it may be best to have the user trim his email store.  10GB is a lot of emails.

Author

Commented:
Thanks.  What do you mean by "trim his email store"?

The user's mailbox is 3GB in size.
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Top Expert 2015

Commented:
If what you're saying is correct that the mailbox is 3gb in size but you see the OST grow to 10gb in 24 hours then it's growing for a reason.  Maybe the user does have 10gb worth of emails.  Do you see 3gb in Office 365 or 3gb in Outlook?

Author

Commented:
I see 3GB in Office 365 portal.
Software Engineer
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