[otrs] from address query

Hi, For different queues, I have set different from email address. When replying from web interface, it displays right from address but the Name before from Address it displays wrong. e.g I have set system address as support@xyz.com, I think its because I am logged in as Darshak. But If I reply, it shows Darshak , so for customer the mail address from displayed is Darshak. But that would be wrong. Is this standard behavior or I can change ? Thanks Darshak