W2k3 POP3 Server not listening

I have installed the Windows Server 2003 POP3 server on a
new server, and it is not listening on the IP numbers
assigned to the NIC card. The SMTP Server works properly
and relays email for authenticated users, the SMTP+POP3
servers receive email messages and stores them in the
mailboxes, but the POP3 service listens only on 127.0.0.1
(i've checked this both with Telnet and PortQryV2).
I've used this service before and it used to work OK on
other hardware. Here is what is different: a) the CPU is
a XEON with hyperthreading (problems on dual processor
platform?); b) the NIC has 11 IP numbers (this number is
too big?)

Sorry, I have discovered that the ISP has enabled TCP/IP
filtering and that the POP3 port (TCP 110) was missing
from the list of allowed ports.

>-----Original Message-----
>I have installed the Windows Server 2003 POP3 server on
a
>new server, and it is not listening on the IP numbers
>assigned to the NIC card. The SMTP Server works properly
>and relays email for authenticated users, the SMTP+POP3
>servers receive email messages and stores them in the
>mailboxes, but the POP3 service listens only on
127.0.0.1
>(i've checked this both with Telnet and PortQryV2).
>I've used this service before and it used to work OK on
>other hardware. Here is what is different: a) the CPU is
>a XEON with hyperthreading (problems on dual processor
>platform?); b) the NIC has 11 IP numbers (this number is
>too big?)
>.
>