MyBB Community Forums

I've been getting a bunch of spam registrations is there anyway to stop the spam? without having to pay or be able to block the email they use

There are a few plugins mentioned in this thread that might help you.
http://community.mybb.com/thread-134093.html

Registration security questions have always been our greatest asset against spam bots. Just make sure the questions aren't yes or no questions as they can just guess.

Example

How do I add the questions