Spammers collect email addresses by scanning guest books automatically I decided therefore to move the entries in this guest book into a database, so it's not possible to misuse your email address. You will have to sign up to post a message, since spammers also discovered guest books to post spam. I promise I will NEVER use your email address unless you ask me a question to which I have to reply privately.
I still have to customize this guest book, but protection of your privacy was more important for me. So I moved all the messages and email addresses first. Believe me, I know what spam is. I received more than 6000 messages per month, message I didn't ask for and I didn't want.