EGetUserAliasList.exe
DomainName - Name of the mail domain.
UserName - Name of the mail domain user.
The API displays the user aliases for the specified UserName, one on each line.
If "u1" is a user on a mail domain "xyz.com" and has two aliases defined, "al1" and "al2", then the output of "EGetUserAliasList.exe xyz.com u1" will print the following on the standard output:
al1al2