Question : i copied the mddata file from 1 exchange server to another, mounted the mailbox file, but can't see my mail

i copied the mddata file from 1 exchange server to another, mounted the mailbox file, but can't see my mail. both servers have the same name etc.

Answer : i copied the mddata file from 1 exchange server to another, mounted the mailbox file, but can't see my mail

Did the 1st server fail?
If so you could try and recover the data store following this article: http://www.computerperformance.co.uk/exchange2003/exchange2003_restore.htm