Webmail Users Return-Path

[sketchified]

Is there any way to use the config files for each email address on a virtual host (i.e. /home/username/.neomail-user/username/config) to change the Return-Path so that bounced emails come back to the original sender instead of the default email account? I hate Webmail, but some would rather use it, so I need a fix for the way it's setup by default. The same thing happens for that other (hate to mention the name) web mail client. Thanks for any help on the matter.

[(SH)Saeed]

Anyone has a solution to this problem?

[smseverywhere]

Return-Path: is the defaul account instead of From: header. How can that be fixed?