webmail is using the 'wrong' email .. :(

I've installed the UebiMiau package for webmail and everything looks great but one thing.. When sending an email UebiMiau uses the web##_user@domain adress instead of the correct user@domain

Is there a way to change this anywhere?

 

Yes, when you're logged in in Uebimiau there's a settings page where you can change that.

 

Ah, thanks, found it.

Is there a way of changing the default?? I can't tell my customers to change that setting in the webmail.