If you're reading this shortly after I post it, odds are decent you got the mass mail that went out. Unfortunately, many of those forum accounts were created 8-10 years ago, and not many people update their contact info in their profile, so some emails bounced, some went into the void, and some are likely sitting in someone's spam folder, never to see the light of day.
However, many of us have each other friended in various other systems (Discord, Steam, Skype, etc), and various other games, know members IRL, or otherwise can reach many old CCers that our email server can't. If you know any such members that may be interested in coming back, please let them know we're up and running again... we'll probably get far more people through direct contact than the high AoE, low impact email burst.