Hello,
in our environment (Windows Small Business Server 2003 Domain with Microsoft Exchange enabled) we have several users who logon exclusively from smartphone (iphone) to the domain getting their the messages via pushmail. Authentication goes through isa server 2006 via ldap - the server is not member of that domain
Everything works fine for a couple of days but then it comes up a error message that username and/or password might be incorrect. The logon failure will be reported in security log at the domain controller (event-id: 529) with isa server as the source address.
At that time a "compromised" user can log on to a domain member (a client or a terminal server session) without any problems and after that the authentication from it's smartphone is successfully
Users who works on a windows client too doesn't have those problems
Any help would be appreciated
Thanks in advance
Torsten
