If you need help with installing or using Cumulus please post a message in the support forum.
Your question may already be answered in the FAQ.
For general, non-support comments and enquiries, or if you are having problems registering or logging in to the forum, etc, email me at firstname.lastname@example.org
Please note that I cannot do personal technical support by email. Using the forum makes it much easier for me to keep track of queries. Support queries sent by email will, I am afraid, be ignored without reply.