Outlook2010 contacts folders messed up

Not open for further replies.


Senior Member
Outlook version
Outlook 2010 64 bit
Email Account
I've shot myself in the foot messing with my Contacts folders, so could use some clarification on how things work. Fortunately, I had a backup.

With Outlook2010, I have multiple accounts as follows:

a) The original POP3, currently has no Contacts folder. No idea where it went; Maybe I inadvertently deleted it with an errant key click. No longer plan to use this account and deleted it in Account Settings, but will keep all folders.

b) New IMAP acct. for iCloud syncing with Apple devices. Main email account now.

c) New name@icloud.com acct. introduced when installing iCloud, etc. Not using this, but believe I need it for iCloud to work. Contains no Contacts folder but don't care (I think). Deleted it once and all iCloud syncing stopped.

I did an import of contacts.pst from a week ago and it populated the empty Contacts folder in the bottom left navigation pane.

In spite of the loss of contacts and calendar data in Outlook, it's still intact in icloud.com and on the iPhone.


  1. Which account is the Contacts folder in the Outlook bottom left nav. pane associated with, or is it a composite or independent of specific accounts?
  2. Months ago I thought all accounts had their own unique Contacts folder; now one has none, and the one that does is empty while the one in the Nav. pane has data (from recent backup import). An hour ago, they were all empty. A puzzlement.
  3. Same questions as 1 & 2 but for calendar. That's gone too, but have an export and have not imported it back in yet. I assume it will go to the calendar in the nav. pane too.
  4. Let's say I leave the contacts and calendar data gone/missing in Outlook, then iCloud comes along for a sync-up. What takes priority, the null data overriding the good data on the cloud of vice versa?
  5. Is it simply the user's choice as to whether or not I associate an Address Book with my (single) Contacts list? They would end up being identical. For years, I have been operating with just Contacts and ignoring the Address Book concept. Is there an Advantage to using an Address Book? I often create group email lists, so need to pick names from Contacts or the Address Book.
  6. I assume to get my many folders from the old POP acct. into the new IMAP acct. I can just do a drag&drop, right?

What started this debacle was an attempt to create a new group email list but could not make the icloud contacts list (that's gone too) default since it's the only one that was populated yesterday. So, each time I added a new name to the group list, I had to manually select the icloud contacts list.

Thanks for the help!
c. ) You shouldn't need it for syncing. You will need to log into the iCloud control panel, but the email account is email (and Apple notes) only, shouldn't affect calendar and contacts sync. If you don't use an iCloud address for the apple id, it won't add the email account.

1. When you use IMAP in Outlook 2010 and older, the contacts folder is in a pst. Contacts can be used by any account in the profile, but if you use IMAP or have a POP3 account delivered to that PST, when you use the Add to Contacts command, this is the contacts folder where the contact is created.

2. Only POP3 accounts, Outlook.com, or Exchange would have separate contacts folders. And unless you added contacts to the folders, they folder may be empty. Right clicking on an address in an email message and choosing Add to Contacts would add it to that account's contact folder, as would opening a new contact form while viewing a folder in a data file.

3. Calendar is in the default data file, with the IMAP accounts using the default data file for calendar too.

4. iCloud merges the data files - so you'll get the iCloud data synced down and nothing new added to the iCloud data file. (My iCloud folders are a mess because i tested it with different profiles and everything merged.)

5. You don't have a choice - you need to have something enabled as an address book. It's used for address resolution when you send mail or click the To button. But you don't have to actively use it, its just there. You don't need the local Contacts set to use as an address book, you can use just the iCloud folder as the address book. You can set it to be the default when you open the address book too. That should help when creating a group list in the iCloud.

6. Yes, drag them to the imap folder. Some imap servers are weird about folder creation and you may need to create the folder first then drag the mail to it. Test it with folders with just a little mail in them and make sure you have a backup of the pst first.
OK, thanks. I deleted the icloud acct with no repercussions and contacts now squared away, now on to the calendar.

An import of calendar.pst from last week gives the error attached. I also selected "Outlook Data file" and that just spent 30 min dumping it into a folder called "Calendar".

How can I import a file called calendar.pst into the actual calendar?

Or, since the calendar is sitting at iCLoud.com, how can I trigger a sync-up?



  • calendar import.JPG
    calendar import.JPG
    46.3 KB · Views: 523
Open the pst in Outlook. I'm not sure if iCloud will detect the new calendar folder and sync it when you clocik the Sync button, but if not, use a list view on the calendar folder then select all and drag to the iCloud calendar.
OK, Calendar is imported and all looks good but still no sync with calendar or contacts on icloud.com or iPhone. Wife's iPhone/Tab is syncing with Dell laptop fine and in fact I get updates on her shared calendar but only on my desktop.

When I finally successfully did the import, it only went to local Outlook calendar. To get my cloud folders back, I had to shut down icloud console and reinitialize with password to fully recreate all the Outlook icloud stuff. I'm now thinking I can't delete the icloud email acct as that removes all icloud folders from contacts and calendar. I'll just ignore it.

I looked at Outlook add-ins and looks like all the "i" stuff is disabled; seems like a problem but see no way to enable them. See attached screen shot.

Could this be why no syncing? it's been 3-4 hrs and on wife's gear (Dell/iPhone/iPad), syncing happens almost instantly.


  • add-ins.JPG
    92.5 KB · Views: 563
OK, here's another oddity. One display (see attached) shows the correct (actual) default data file, and the one in fact where new mail lands, and in another display it shows my old pop3 data file as default and it won't let me change it in that particular display. Wanted to change it so I can delete it but you obviously can't delete the default. email happens to be working fine and syncing too, but suddenly started getting the famous and pesky pop-ups asking for my email server password. I usually fix it by going into Yahoo and changing my p/w but have not tried it yet.

See both displays attached.



  • right default data file.JPG
    right default data file.JPG
    42.1 KB · Views: 526
  • wrong default data file.JPG
    wrong default data file.JPG
    50.9 KB · Views: 550
Finally got contacts and calendar syncing with iCloud! Problem was the iCloud add-ins in Outlook were disabled. No idea how that happened and they stubbornly kept going off after each OL shutdown-restart cycle, but after running OL as admin, they stayed on. Then could run OL as not admin and they remained enabled. ???

Problem with data file defaults above remains but appears non fatal with no symptoms beyond what you see in the attachments.
Not open for further replies.
Similar threads
Thread starter Title Forum Replies Date
G Outlook2010 - corrupt contacts Using Outlook 0
E can't sync iPhone 4 with Outlook2010 Using Outlook 24
O Any 3rd party tool that sync (mirror) from Outlook Contacts to Google Contacts? Using Outlook 4
G Apply Custom Contacts form to all existing Contacts Outlook VBA and Custom Forms 1
G Add Map It button to Custom Contacts Form in Outlook Outlook VBA and Custom Forms 1
B Sync Outlook Public Folders to Contacts Using Outlook 2
Kika Melo How to mark as Junk any message not from Contacts (in Outlook.com) Using Outlook 3
G Outlook 365 My iCloud Outlook doesn’t work after reinstalling Microsoft365 on Windows 10 PC – now I get error message on contacts and calendar Using Outlook 1
T How to Export & Import GMAIL Contacts into Outlook 2021 ? Using Outlook 4
L Applying new form to existing contacts -- MessageClass Outlook VBA and Custom Forms 3
Bardiferous Weird Contacts Behavior - Can't find any in any address book, but they're in there Using Outlook 3
S client lost 3K contacts when office 365 for mac account deleted from company exchange server Using Outlook 5
O How to sync (one way) contacts between two Outlook (exchange) accounts? Using Outlook 0
P How to clear out all contacts in iCloud, so I can use iCloud-based sync program Using Outlook 1
R How to prevent corrupted Notes format in Calendar and Contacts Using Outlook 0
K Outlook 365 After migrating to Outlook 365, some contacts display in emails with prefixes Using Outlook 0
kburrows Outlook or Phone Combining Contacts? Using Outlook 0
Witzker Add a text line at the end of the note field in all selected Contacts Outlook VBA and Custom Forms 7
G Add contacts birthday to calendar Using Outlook 4
R How to force Outlook to use plain text in notes for Contacts? Using Outlook 1
S Cannot print Contacts Using Outlook 7
V Backup Calendar, Contacts, Tasks in an POP3 data file Using Outlook 3
J Outlook 365 Outlook 2016/365 Contacts Lose Info when Favorited to the To-Do Bar Using Outlook 2
D Advanced e-Mail search on from/to contact group only searches for first 20 contacts in group Using Outlook 0
P Outlook calendar and contacts sync problem-outlook disconnects Using Outlook.com accounts in Outlook 2
K Font Sizing in Custom Form Regions for Contacts Outlook VBA and Custom Forms 1
O Outlook - hidden contacts? Using Outlook 2
H Synchronize contacts and calendars across multiple devices Using Outlook 0
S Outlook 2016 Change how Outlook shows me contacts in emails Using Outlook 0
L Favorites for People/Contacts? Using Outlook 1
K can't get custom form to update multiple contacts using VBA Outlook VBA and Custom Forms 3
Horsepower Contacts added from iPhone don't show up in Outlook Using Outlook 2
B oContacts.Items.Restrict Misses Some Contacts Outlook VBA and Custom Forms 3
F Moving Contacts to New Profile Using Outlook 0
V Contacts in O365 have changed?? Using Outlook 20
T Outlook 2010 BCM Migration to Standard Contacts BCM (Business Contact Manager) 0
D Outlook Contacts Notes Field Photos to Smartphone Using Outlook 0
G Add to Outlook Contacts - Point to non-default contacts folder Using Outlook 0
D Is a sub folder under contacts necessary to be able to name an Address Book? Using Outlook 1
L Outlook 2016 Contacts missing in Outlook 365 Using Outlook 1
L icloud contacts sync Using Outlook 4
Fozzie Bear Outlook 2016 Creating a shared local Contacts folder Using Outlook 2
M VbScript for Command Button on Contacts Custom Form Using Outlook 1
J Outlook 2013 Change color of text in data fields of contacts in Outlook 2013? Using Outlook 10
M Changing the preferred order for "Put this entry in" list for adding new contacts to the Address Book Using Outlook 1
GregS Exporting contacts Using Outlook 1
O Synchronising contacts Outlook 365 with Google v.v. Using Outlook 4
J can't sync outlook calendar contacts with iphone ipad Using Outlook 4
M PST import from Outlook 2007 to 2010 - Address Book contacts all in 1 group Using Outlook 4
egarneau Meeting updates with external contacts (GMail) Using Outlook 1

Similar threads