Direct mail as a Real Estate Agent

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Happy Friday everyone!

I'm a new real estate investor and real estate agent. I recently sent out a batch of direct mailers before I was issued my California agent license. This means that none of my letters have my CalBRE id# on there, or a disclaimer saying that I am not trying to take a listing from another broker. What are the repercussions for doing this?

What should I do in the future to avoid these problems and how are agents currently sending direct mail (for investing purposes)?  

Thanks!