Again - brand new person I have never contacted before. And AGAIN the only way for her to block you other then her email filters is THROUGH A MESSAGE YOU HAVE PREVIOUSLY SENT. The only button to block you is at the bottom of a message you sent.
Your own text in the message and your previous posting history can creat ea situation where it SAYS it was sent but its not in your sent messages.
But if you are getting a message saying that you can not message her its email filters or SHE BLOCKED you because you messaged her before. There are simply no other options.