In the logs:
Any ideas?[06.11.2010 15:10:53] <04> Error The remote server returned an error: (440) Login Timeout. (System.Net.WebException)
[06.11.2010 15:10:53] <04> Error at System.Net.HttpWebRequest.GetResponse()
[06.11.2010 15:10:53] <04> Error at Veeam.AIR.Exchange.WebDAV.HttpRequest(String uri, String method, WebHeaderCollection headers, String body)
[06.11.2010 15:10:53] <04> Error The remote server returned an error: (440) Login Timeout. (Veeam.AIR.Exchange.WebDAVException)
[06.11.2010 15:10:53] <04> Error at Veeam.AIR.Exchange.SelectExchangeServer.CheckServer(Address address, String server, Boolean isProduction, CCredentials& credentials)
[06.11.2010 15:10:53] <04> Error at Veeam.AIR.Exchange.SelectExchangeServer.FindAddressServerAndCheckCredentialsThread(Object name)