Before posting you might want to read the Tips for getting help.
Many users prefer to use online forums rather than joining a mail list which can lead to lots more email traffic so we use the online forums at Nabble forums which also work with our Mailing Lists so that both stay completely in sync. Use either the mailing lists or online forums, its completely up to you.
Positing from Nabble
Use the user forum for you Camel questions, and asking for help.
The developer forum is only for discussing the development of the Camel project itself. It is NOT for user help, and questions about "how do I do ...".