iPhone trouble with Exchange - Account not valid, but pulls email and not all contacts

Posted on 2009-12-23
Last Modified: 2012-05-08
I have a client that has a Windows SBS 2003 server with Exchange 2003 SP2 installed on it. They have had no trouble in the past with email to iPhones, but as of late I am having some difficulty. When I create the account on an iPhone, I get the prompt that the certificate is not recognized for the user at the external domain which is fine because it is looking for a certificate at but that is not the actual mail server. So then I put in the actual Exchange server and I then get a notice at the top that the Exchange account verifiecation failed. The catch is, if I save the account anyway, I then get email just fine and my calendar. I am however missing some contacts. I can't for the life of me figure out why it tells me that the account fails, but then it still connects to the server fine.

I have tried different variations of the username and domain, but in the past it has worked just fine by just adding the info in the field that requests it (such as the domain in the domain field, the username in the username field, etc).
Question by:robynhowes
    LVL 76

    Accepted Solution

    Please run the Exchange Activesync test at and report back the results.
    If it errors in any way, please read my FAQ on Activesync with Exchange 2003 for guidance, troubleshooting steps and hopefuly resolution.

    Expert Comment

    I ran this earlier and it looked good to me. The only warning I get is the one below:
    Validating certificate trust for Windows Mobile Devices   The test passed with some warnings encountered. Please expand additional details.   Additional Details   Certificate is only trusted on Windows Mobile 5.0 AKU2 (MSFP) and later. Windows Mobile 5.0 devices will not be able to sync. Root =, CN=, OU=ValiCert Class 2 Policy Validation Authority, O="ValiCert, Inc.", L=ValiCert Validation Network  
    LVL 76

    Expert Comment

    by:Alan Hardisty
    PBridges - are you robynhowes?  It is confusing if you answer as another Expert.  Please can you reply in future as robynhowes otherwise I may delete the email as it just comes up as a comment not Author Comment.
    That message is fine - it just says that you will have problems with Windows Mobile 5 phones if you don't install the 3rd Party Root Certificate to the device, otherwise, Windows Mobile phones and iPhones etc should work happily.
    Was that the only error?
    LVL 1

    Author Comment

    SOrry about the confusion, yes Robyn is my boss and I was under her account when I posted earlier.

    The error I posted under PBridges was the only error that was generated.

    I did find someone pointing to possible Message Store corruption and steps to resolve that in this ticket:

    LVL 76

    Assisted Solution

    by:Alan Hardisty
    That would be my next recommendation after trying to sync another account to see if everything sync happily with an alternative account.

    As the tests pass happily, all mail should get synced.

    I have another FAQ about partial sync problems which might be useul:

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