Hello !I have Windows Server 2003 R2 SP2 with installed MS Exchange Server 2007 SP1. When I startMicrosoft Exchange IMAP4 service, I receive this error: "The microsoft exchange imap4 service on local computer started and then stopped. Some servicesstop automatically if they have no work to do". In Application Event log I have the follwoing error: "A certificate for the hostname e2k7 could not be found. SSL or TSL encryption cannot be made to the IMAP service. Event ID : 2007" When I try to start Exchange Management Console, I receive this error: "Active Directory Operation failed on ex2k7. The supplied credentials for Administrator on Bind operations is invalid. Error code 0x31. It was running command get-ExchangeAdministrator". I installed Service Pack 2 for Microsoft .NET and Update Rollup 5 for Exchange Server 2007 SP1.But I again receive the same errors. Can you help me ?

http://www.msexchange.org/articles_tutorials/exchange-server-2007/mobility-client-access/using-pop3-imap4-access-exchange-2007-part1.htmlhttp://technet.microsoft.com/en-us/library/bb124489.aspx

hi,please try to uninstall Exchange Server Rollup5 and then try again.have a nice day...System Support Specialist / Bursa / TURKEY

Hi,Please run get-exchangecertificate |fl command in EMS, then post the information on the forum.ThanksAllen