No messages are received

I’m trying to get a Jabber server on a local network, and hoped Openfire would work. Long ago I used Jive’s version and it was fine.

I installed the server and set up two test users. Everything seemed OK.

I logged in one user (A) on a Linux machine with Gajim, and A shows up in the admin window. I logged in the other (B) on another Linux machine with Pidgin, and that user shows up in the admin window. But when A sends a message, B does not receive it.

Where do I begin to fix this?

Are you sending messages without adding users to contact list? Are you able to add these users to each other’s contact list?