Hi all, Thanks to this forum I think I have finally been able to sync reproducibly to mail for exchange! Here is what I have found: I started, as most, trying to sync and getting the error "either exchange server requires secure connection or account is disabled" (I’m running Firmware v: 1.2009.42-11) So I imported a Certificate since the program does not do it automatically (Please Nokia this should be fixed!). Like Mikec wrote in a previous post: if you have OWA (outlook web access) surf to it using your computer. (if not request the certificate(s) from your administrators), You will notice a padlock at the end of the address bar on IE7, Click the padlock, Click "view certificates", Click the "Details" tab, Click "Copy to File", A Wizard will start up. If you have a certificate chain like we do, just exporting to a Base-64-encoded X.509(.CER) will not work! You can see the certificate but the install will not appear. Create instead a PKCS 7 (.P7B) and include all certificates. Click next and save it somewhere. Now open the file and you will find a different view. Go to the certificates and start the procedure again for all of them in the chain to Base-64-encoded X.509(.CER). We have 3 in our chain (4 including the user certificate that you will not be able to import. (actually you can import the PKCS 7 file into the N900, but I have not tried to see if it works) I installed PC suite and copied the 3 files over to my N900 via Bluetooth. 1. I confirm that: exchange 2003 does not work, but 2007 does. Very few systems work with 2003 because it is not a good program! 2007 must also be set to allow non-provisionable devices. 2. The Region for some reason needs to be the same in the system and in MFE (if you use settings -> mail for exchange, you don’t have to set this and is not an issue.) 3. The missing point that I discovered, when importing the certificates they must be set as “server” and not as “E-mail”…..go figure! I think that is all, Thank you all for your posts!