Hello, I am using Microsoft Exchange 5.5 (Sp 4) with NT 4 (spk 6). After a disaster, I had some troubles to restore the database but after restored the database I couldn´t start MTA. On Event Log I had the error message ID 2152. http://search.support.microsoft.com/search/viewDoc.aspx?docID=KC.Q169918&url =kb;en-us;Q169918&dialogID=145872038&iterationID=1&sessionID=anonymous|30967 657 I´ve already deleted the Mtacheck.log file located in the Exchsrvr\Mtadata\Mtacheck.out directory but when I tried to start it, it made a new file Mtacheck.log, but MTA service couldn´t start. Any idea to start MTA service? Please help Thank you very much Eduardo