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Migration from Gmail to Office 365 - iPhone Problems

Posted on 2016-08-12
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Last Modified: 2016-09-05
User had large number of email in  multiple folders/subfolders in Gmail, we connected Outlook using IMAP to the Gmail account and downloaded all the email to a .pst file. we then set up a new Outlook profile connected to Office 365 and the the .pst file and uploaded all the email to Office 365 and waited until it had synced and was visible in OWA.

The first problem was that the folders were IMAP folders and had an incorrect filter set which prevented the emails from showing. We fixed this using the technique shown in Slipstick (http://www.slipstick.com/developer/code-samples/change-outlook-folder-type-export/) to change the folder type. The email is all working except the user cannot see the folders on his iPhone. If I create a new folder and copy emails to it this is visible but the exported folders and their contents do not show up in the "native" iphone email cleint.

Any help in how to solve this would be much appreciated.

John
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Question by:jhswinson
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LVL 18

Expert Comment

by:xtermie
ID: 41753645
The iPhone set up to see the a Microsoft Exchange Mail account, correct?
Via the Settings – Mail, Contacts, Calendar entry.  

Also, everything works seamlessly if your Office365 account is setup properly – which it is if you’ve accessed it via the web or via Microsoft Outlook.
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Author Comment

by:jhswinson
ID: 41753814
Yest the iPhone is set up OK and is receiving new mail the problem is that it cannot "see" the old folders which can be seen both in OWA and Outlook.

John
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LVL 18

Assisted Solution

by:xtermie
xtermie earned 250 total points (awarded by participants)
ID: 41753836
did you set the iPhone email prior to changing the folder types?  If yes, you need to delete the email account from the iPhone and re-set it as Microsoft Exchange Mail account
If no, it is quite strange...
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LVL 45

Accepted Solution

by:
Jackie Man earned 250 total points (awarded by participants)
ID: 41756059
You need to re-do the migration to Office 365.

The problem is that GMail is NOT using a real sub-folder.

Instead, sub-folder is just a filter and you need to download all mails to a computer using POP3 from GMail and create new sub-folders and copy all those emails to the sub-folders.
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LVL 18

Expert Comment

by:xtermie
ID: 41784451
good options and feedback provided, author did not get back to allocate points
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