Hi,
There are several possibilities that may cause this issue.
1. A GPO setting may forbid the user to define Send/Receive Groups. If other users couldnt check that checkbox, either, please verify with your administrator if theres a Group Policy forbids that setting.
2. The 3rd-party services/add-ins could also be the possible reason, let's troubleshoot this from running Outlook in safe mode, to determine if it is 3rd-party add-ins related:
To start Safe Mode:
Press win + R and type outlook.exe /safe in the blank box, then press Enter.
If theres no problem in Safe mode, disable the add-ins to verify again:
1. FILE > Select Options
2. Under Options click Add-ins and now you are able to disable Add-in for your Outlook
3. Once you have disabled the unwanted Add-ins, restart Outlook to apply the change
Feel free to post back. Thanks.
Tony Chen
TechNet Community Support
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Marked as answer by
Tony Chen CHNMicrosoft contingent staff, Moderator
Monday, July 29, 2013 6:42 AM