Iphone getting millions of invitations

I have a user's iphone 4 (v6) getting upwards of 4 million invites on his calendar.  This just started.  He is on Exchange 2010, and his mail (Outlook and OWA) is working.  I had him turn off the calendar toggle, delete all calendars, and turn on the toggle.  No Joy.  I had him delete his account completely, and rebuild.  No Joy.

Any ideas?
handgunownerAsked:
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btanConnect With a Mentor Exec ConsultantCommented:
Just to see if this may be related as v6.1 has issue
... To resolve this issue, Apples advise update to iOS 6.1.2.

http://i7nw.com/byod-inbox-is-flooding/

(Microsoft just released a KB article that details what we know so far:  http://support.microsoft.com/kb/2814847
Apple has also recently released a support article for this issue: http://support.apple.com/kb/TS4532)

This happened when you respond to an exception to a recurring calendar event with a Microsoft Exchange account on a device running iOS 6.1, the device may begin to generate excessive communication with Microsoft Exchange Server. You may notice increased network activity or reduced battery life on the iOS device. This extra network activity will be shown in the logs on Exchange Server and it may lead to the server blocking the iOS device. This can occur with iOS 6.1 and Microsoft Exchange 2010 SP1 or later, or Microsoft Exchange Online (Office365).
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Lounge FoxCommented:
I know this May seem simple but please ensure he has BOTH    Invite Alerts and Shared Calender Alerts turned off.
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Lounge FoxCommented:
This is located in Settings: Mail Contacts Calendars........ Scroll down to calendars, New Invites if the top toggle,  Shared Calenders is at the very bottom.
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Lounge FoxConnect With a Mentor Commented:
Along the same idea as breadtan. iOS has updated to iOS 7.0.3, this too may resolve the problem.
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handgunownerAuthor Commented:
Thanx.  I will check it out.

I have 3272 users on phones, and he is the only one having this problem, among other problems, ie, his phone will lose connection for hours at a time and then get a connection again.

Unfortunately he is a very non-technical company big wheel and doesn't like to talk to support.  

I do know he has an old OS, and refuses to add the domain line to his iphone because he doesn't like the company domain name...he's pushing to change it.

I've asked another big wheel to talk to him and try to get some cooperation.
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btanExec ConsultantCommented:
No patch No adequate protection. User awareness is key ingredient
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Lounge FoxCommented:
I am banking on it being the old iOS.
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