[TriLUG] Virtual Domains Question

[Mark Fowle]

I have setup my virtual domains - we'll call them virtuala.com 
virtualb.com and virtualc.com --

I have DNS, web and incoming email working no problem -- Now I need to 
setup the users so that they are able to send outbound email under that 
right domain.  I setup the virtusertable and genericstable -- but I 
think I'm still missing something - like how to setup the users so that 
they are logged into the right domain so outbound email will be correct.
Any help would be appreciated -

TIA,
Mark