qmail-smtpd, qmail-send and multiple IP addresses

[Darcy Buskermolen]

Is there a way to get qmail to use the IP that mail is recived in on to
resend it back out ?

ie My qmail box has a few IP applied to it.

10.1.1.1
10.1.1.2
10.1.1.3

I'd like mail comming in via smtp on 10.1.1.2 to go out useing 10.1.1.2 as
the src address. Currently it defaults to 10.1.1.1

IS there a way to do this ?