I created an account with domains.live.com changed my Mx and what not and  everything worked fine for the first 2 months. After that the Costumer that i created the account call me and it is telling me that is outlook is not working anymore (he bought Outlook 2010). So when i look at the he is receiving 2 error:

Error 0x8004102A and 0x800CCE05

In the folder where i get the error it is telling me "Authentification impossible sur le calendrier Windows Live". So i tried to build a VM with a clean version of windows and Office (Both legal and fully updated) and the probleme happen again on both computer. the only way to "fix it" is to delete the profil and create a new one, but i can't do that every other week,.

Anyone can help me? The phone support told me they can't do anything for me....