We had three domains hooked up to Jira for user authentication:
xxx/yyy/zzz.some.domain
Now that we removed two of them we'd like to make the logon process a bit more convenient to the users we have left. The goal is to let them log in with "<username>" instead of "<username>@xxx.some.domain" but since changing the username (on db level) isn't an option we'd like to append the domain part to the username field input prior to sending it to the server for authentication.
Any bright ideas? 
Many thanks,
Damien