Send & receive while account is closed but TB is running?

Hello TechBats,

I'm not sure wether this is for TBUDL or TBTech, so I'm sending it to both:

With The Bat Running and other accounts open, is it possible to send and
receive messages from another, password-protected but not opened, account at
a regular interval?

Problem is: my wife uses TB networked from another PC; messages she writes
are not being sent unless I or she open(s) the account on my (server) PC too.
(Idem dito for received messages)

Should I try to use PowerPro for this?

Of course, I could always leave it open on my PC...

Or I could use a third PC for a server... (that would keep mine more
available during message importing, but OTOH the (third, older) PC would be
slower.

-- 
Best Wishes,
Mark                            
using The Bat! 3.5.0.17