Can too many mail subfolders prevent activesync from working?

Posted on 2011-05-09
Last Modified: 2012-06-27
I have a user with hundreds of subfolders within subfolder in his Inbox, Sent items and Deleted Items folders, plus a few user-created folders in the root of the mailbox. Some of these folders have long names and many of them are empty.

I've been unable to activate an EVO device, the device sits there for a long time and eventually stops and I get a message that reads "error" and nothing else.

When I check the mobile device settings in exchange management console I get a type of MOTOBUR30, which I assume is the OS, but no User Agent.

I've successfulyl activated the device with a different, more normal, mailbox.

Is the culprit the user's mailbox folder structure?

Thank you.
Question by:cyberleo2000
    LVL 8

    Accepted Solution

    I have never had this issue.  I have a Thunderbolt with Android and a Windows Mobile 6.5 phone.  Do you see any errors in the event viewer or on the phone?  

    Author Comment

    no errors other than the simple "error" message i got earlier. After renaming a lot of folders as well as deleting archvied email, it seems to have syncrinized, somewhat. I can send email, but have not yet synced anythig into the inbox.
    LVL 6

    Assisted Solution

    Hmmm, could be. One thing to watch out for is more than 16,000 items in one folder.

    Author Comment

    I moved the user's mailbox contents to PST using exmerge and them imported only this month's worth of Inbox and Sent email as well as his Contacts, Calendar, Tasks and Notes and eventually the device synced, although it still took much longer than usuall. I also removed hidden blackberry infomation from when he had a BB.

    thank you all for your help

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