I was recently lucky enough to be given the latest and greatest iPhone 4s by the company I work for. Its a great little phone and I’m hugely impressed by it. However upon setting the iPhone 4s to sync with exchange 2010 I found that I went from have my usual hundred or so contacts to literally thousands. So finding people to call or text was a major pain in the backside. After playing around with the iPhone and outlook 2010 I found the solution to stop the iPhone syncing unwanted contacts.
It turned out to that the iPhone will always pull all your contacts in outlook, the trick is to clear down your “suggested” contacts. For me this is not an issues as I email hundreds of people per week and the last thing I need is all their information in my iPhone. We need to disable the feature in outlook to stop adding suggested contacts to the iPhone
So first , launch outlook 2010 and click on File.
Then select Options. Once done select the contacts option as seen below, you will need to then take the tick out of automatically create outlook contacts for recipients. This still leaves all of your old suggested contacts in place, it does not remove them and no further suggested contacts will be added.
Now that we have disabled this feaute we now need to remove the existing suggested contacts.So select contacts.
Then finally we need to resync our iPhone or iPad so we dont not see all of the old suggested contacts.
On your iPhone go to Settings > Mail, Contacts, Calendars > select the email account, turn the contacts syncing off, and back on again.
Your iPhone will then resync.