Configuring more than on domain for XMPP

[kribor]

Hi,

The instant messaging server installed as part of zimbra is working quite well for the first domain installed on the server but not for other domains. The behavior I get is really a bit strange:

• First domain, "example.com" works fine
• Second Domain, "example2.com" - clients can connect and add buddies but I cannot get any messages to be delivered
• Third Domain, "example3.com" - Connecting using external client (pidgin) fails and ajax client can log in but not add buddies

Are there any known issues with having multiple domains? If it works will should people from different domains be able to add each other? Any ideas on how to trouble-shoot this further? I can't see anything interesting in zimbra.log at least..

The setup is as follows:
Running behind NAT where NAT has 83.x.x.x. ports 5222-5223 are forwarded to the zimbra machine (192.168.1.6)

example.com
Has DNS A-record pointing to external IP 83.x.x.x
internally resolves to 192.168.1.6

example2.com
Has DNS A-record pointing to external IP 83.x.x.x
internally resolves to 192.168.1.6

example3.com
Has DNS A-record pointing to external IP 83.x.x.x (recently added)
internally resolves to 192.168.1.6