Once you are subscribed, you can post messages to the list simply by addressing email to <mailto:firstname.lastname@example.org>. If you are new to mailing lists, you may want to read the following resource about asking effective questions: http://www.catb.org/~esr/faqs/smart-questions.html
To get off the list, send a message to <mailto:email@example.com>.
Send a message to <mailto:firstname.lastname@example.org> to learn other mailing list configurations you can change.
The list is hosted as a Google group. If you are subscribed with a Google account, you can interact with the list, configure your subscription, and see the archives at https://list.nist.gov/fipy.
Older messages are archived at https://email@example.com/.