Deleted the Mail app from one of the user accounts from my MacBook Pro, running Mac OS X 10.6.8. It is still available and running in the other user accounts.
Is it possible to restore the app from the other account?
If you deleted the app from /Applications then its gone for everyone. You removed it from the drive. You either need to restore it from a backup or reinstall the OS.
Where did you remove it - from the dock or from the /Applications folder.
if its from the folder then the application has been physically removed from the computer. It may still be around though if you did not clean out the trash. Look there and drag it back to /Applications if its in the trash
That is strange. Does that mean, going to the Applications folder on that user account via Finder > CMD+SHIFT+A Mail does not show up, but when you login to another account, Mail is still there when going to Finder > CMD+SHIFT+A?