You should be getting errors in your apllication log. If you get 10065
here is a post from Walter that helped me at one site.
I called Microsoft today and got a successful resolution to the POP3
email/10065 error. (Every SBS2000 installation is entitled to two FREE
tech support calls. This refers to each licensed copy of SBS, that is,
of course!) For the phone number, go to the SBS2000 web pages at the
microsoft web site.
SBS2000, Dialup connection to Internet, POP3 connector. Email comes in
successfully with Outlook Express on the server. POP3 connector
returns 10065 error. ICW has been run. IE browses out to the Internet
Open the ISA Manager.
Go to Servers & Arrays, Servername (whatever it is), Access Policy, IP
Create a new Custom Filter. Call it "POP3".
This custom filter has the following parameters:
IP Protocol: TCP
Protocol Number: 6
Local Port: All Ports
Remote Port: Fixed Port
Remote Port Number: 110
Local Computer: This Filter Applies to: Default IP Addresses on the
external IP Interfaces
Remote Computer: This Filter Applies to: All remote computers
SBS ICW is supposed to set all this up, but it apparently doesn't.
Once I did this, all worked like a charm.
right click pop3 connector in administrator console and setup a mail
select the administrator as recipient. All unresolved mail should go
to the Administrator account mail box.
With outlook you should see the mails sent to this account. You can
then examine the to fields to troubleshoot the reason for not sending
them to the correct clients.
>I've a POP3 connector problem on a SBS 2000 server which is configured for
>everything (exchange, isa, directory controller, ...). Windows 2000 SP2 +
>Exchange 2000 SP2 + ISA SP1 + all security patches are installed on this
>Everything was OK. Now, suddendly, Connector for POP3 is not working
>anymore. Indeed, I've 3 exchange user mailboxes configured for POP3. But
>mails for these users remains at the POP3 server side (our ISP mail server).
>I've tried to do manual retrieving via the pop3 connector properties dialog
>box of the exchange console, but mails remains at the POP3 server. I've set
>also the logging level to "maximum" in the diagnostic tab (for all services)
>to see if something wrong is logged. In the mean time, I would like to know
>if somebody already got this problem and found a solution to fix it.
>Thanks in advance.