I wanted to change proxy address on clients so I ran this two commands in exchange management shell: Set-OutlookProvider -Identity EXCH -Server OURSERVERNAME -CertPrincipalName "msstd:address.sth.com" Set-OutlookProvider -Identity EXCH -Server OURSERVERNAME -CertPrincipalName address.sth.com But after clients have "resynced" with their Outlook 2007 with our Exchange server I have some serious problems. If I look proxy settings on the client I see that first address is https://EXCHANGE but it should have been https://address.sth.com but lower address is good msstd:address.sth.com Please help how to fix this problem! bostjanc

According to this; Autodiscover Service Returns Unexpected Values for Outlook Anywhere Proxy Settings, the Server attribute for the OutlookProvider object should remain at its default setting of $null ... which yours isn't.Jesper Bernle | Blog: http://xchangeserver.wordpress.com