DCC Pyzor and firewall config

[pstechnology]

Hi

I am trying to get DCC working with SpamAssassin (4PSA Spam Guardian implementation). My server is a 1&1 server behind a Cisco firewall and also has the Plesk firewall module enabled.

I am having real difficulty in getting DCC to recognise the DCC servers. I get a "Not Answering" status when I run - cdcc info

On the Cisco firewall, I have enabled the following config:

Remote IP - ALL
Remote Port - 6277
Local Port - Any
Protocol UDP
Allowed

In the Plesk firewall, I have set up:

Allow outgoing to ALL on ALL ports

But, I still get the Not answering messages, and Pyzor doesn't work either.

Can anyone see where I have gone wrong?

I read in lots of places to treat DCC traffic like DNS traffic. I dont get what that means.

Any help would be appreciated.

Thanks