🚀 go-pugleaf

I've been experimenting with my software (VPOP3) and the beta POP3 server
at Demon, and I've encountered a slight problem. As mentioned elsewhere,
VPOP3 has both clients & servers for both POP3 and SMTP.

VPOP3 connects to Demon Internet, and connects to the POP3 server to
retrieve messages, however, at the same time, the SMTP client at Demon
starts sending the same messages to the SMTP server in my software. Now,
this is a bit undesirable, since I end up with two copies of every mail
message...

Is there any way of stopping connections from the SMTP client if I'm
connecting to the POP3 server? 
An easy way would be to reject connections from the SMTP client at Demon.
To do this, however, I'd need to know the IP address. Currently it appears
to be 194.217.242.1 (at least it has been for several connections). Is this
fixed or is it likely to change? Is there any better way of doing this?
Would it be better to reject any connections which send 
'HELO xxxxx.mail.demon.net' ?

Paul

PS. Is the POP3 server planned to go 'live' soon?