I have to continually delete spam posts from my blog. Help!
The public does not, generally, have the ability to post to your blog. There is one known way for unknown parties to post to your blog, and that is using a Mail-to-Blogger Address, when you set one up. The Mail-to-Blogger Address is a protected email address that you (and your friends) can use to post to your blog by using email. The address has 2 components - public and private.
- The public component, that you can't change, is based upon your (if you are the original blog owner) email address.
- The private component, that you can change, is based upon a secret, that only you (and your friends) should know.
If an unknown party finds out your email address, and can guess the private component, they can easily email posts to your blog. If your email address is at all known, and you want to use Mail-to-Blogger for posting, you better make the private component pretty hard to guess, unless you like spam.
The private component is the password to your blog, when you use Mail-to-Blogger. Give it a non-trivial value; the more complex the better. If a spammer can guess it, he will. Make guessing impossible, if you want to keep spam posts out of your blog.
If you have 2 (or more) blogs that you're using Mail-to-Blogger on, use different private component values for each blog, to keep the posts separate. If you setup Mail-to-Blogger so your friends can post to your blogs, and if you don't totally trust any individual who you disclose a private value to, make sure that knowing the value of one won't provide a clue to the other. If you have a cat and a dog, don't make one equal the name of the cat, and the other equal the name of the dog.
And here's one more detail. If you are using Mail-to-Blogger to let unregistered friends post to the blog, remember to only share the private component with those who you trust. And note that when anybody uses Mail-to-Blogger to post, there's no identification of that person, provided by Blogger - all posts are anonymous, and only based upon the Mail-to-Blogger public and private portions of the address used. You'll have to setup an agreement with all of your friends, and have everybody include their name in the content, if you want the posts to identify anybody.