How to Block Spam Comments in Your WordPress Blog

How Spammers Reap What You Sow. Is your in-box clogged with junk email messages and blog comments from people you don't know? 86% of all email addresses published on web pages received spam. Spam is something every webmaster and blogger has to deal with. Spam is the unregulated, irrelevant and unsolicited bulk messages filled indiscriminately with links to malicious sites, fake or even banned medicine advertisements.
Spam is one of the most insidious side effects of the Internet revolution and has only gotten worse over time.There are various ways to filter spam in your blog comments.Unfortunately, many of us now spend a lot of time scanning & removing spam that our biggest concern has become that we don't loose original messages we really want. A couple of simple precautions and software available online can dramatically reduce the amount of spam.
How can you stop spam

1. Use captcha plugins to counter spamming bots, that crawl the internet looking for comment boxes
2. Use Akismet plugin. Its a free to use service that keeps a database of spamming bots and their activity pattern.
3. Moderate comments
4. Disable user registration in WordPress blogs
5. Dont give away your email addresses. Stop posting your e-mail address on a public forum or website. It is estimated that 95% of all junk e-mail is caused by a person publicly disclosing his or her address in sites like Facebook, orkut etc. Stop email harvesters by obfuscating email addresses. If it is necessary to give one write it in the following manner so that the bots can't catch it. Write info@yoursite.com as info[at]yoursite[dot]com

These few basic things can certainly minimize spam in your WordPress blog.