ISA 2004 + Exchange and access to mail with Windows Mobile

Hi

I have this network:
- An Windows 2003 Server / AD / DNS / Exchange 2003 server on the LAN
- An ISA 2004 Server in DMZ
- I have Qtec phones with Windows Mobile and 3G / GPRS

I'm trying to check my emails using push/pull technology.

I have made a rule/policy at the ISA2004 server that gives me access to OMA and Microsoft-Server-Activesync.

I have also bought a SSL-ceritificate.

Outlook webaccess via the ISA server works fine

I also manage to access https://official-host/oma and https://official-host/Microsoft-Server-Activesync with a browser, and it works fine. It prompts me with username/password as expected. I get a really basic html-version of my inbox/calendar etc.

However, I recieve the following error on my Windows Mobile phone: "Synchronization failed. Try again later. Error code: INTERNET_55.

I have tried various settings both on the ISA server and the Exchange server, and the error message on the phone change. Sometimes I get HTTP_404 or something, but then the URL-s specified above does not longer work with a browser.

I hope anyone have any idea what could be wrong.

regards
Frode Slettum

nettverkspartnerAsked:
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Keith AlabasterConnect With a Mentor Enterprise ArchitectCommented:
If you see the error INTERNET_55 then try installing the digital certificate required to sync. See Microsoft KB article 322956 for Pocket PC 2002.  For Windows Mobile 2003, just copy the certificate to the Pocket PC and click on it to install it.  Microsoft allows Windows Mobile 2003 devices to select whether or not to sync without a certificate however Pocket PC 2002 do not have this option.
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Keith AlabasterEnterprise ArchitectCommented:
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Keith AlabasterEnterprise ArchitectCommented:
Thanks :)
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