LVS-NAT or direct routing or...?

[Kristoffer Egefelt]

Hello,

I've searched and searched but I can't seem to find an answer to this
particular problem:

Setup:
1 debian 2.6 w. iptables -  LVS-NAT with 1 public and 1 private interface.
2 mailservers.

Problem:
All mail looks like they come from the loadbalancer's primary ip.
I would like to be able to choose which ip address the mails are sent from.

Is this possible with LVS-NAT or do I need direct routing or...?

Thanks.

/Kristoffer