The Kyuubi developer mailing list is the preferred means for all your questions when using Kyuubi, which pushes your doubts out to the entire community. This is the best way to keep up-to-date with the community.
Before you post anything to the mailing lists, be sure that you already subscribe to them. The currently available lists are listed in the below table.
Sending a subscription email is also very simple. The steps are as follows:
When posting to the mailing lists, please use plain text emails. Do not use HTML emails. HTML emails are more likely to be targeted as spam mails and rejected. It may get malformed through different mail clients and not easily readable by others.