Plesk 11 - Service provider mode - change email username

[jswainosd]

Hi,

When creating email addresses, Plesk assigns the email address's username to be the domain name ( username?: jason@osduk.com ), is there a way to amend this username ( jason@osd )? I am migrating accounts from a different server (non Plesk) and don't want to change all of the usernames for my customers as this would take for ever and be a great inconvenience for them and me.

Thanks in advance,

Jason