I would love to share a new tool with your readers. BigString is a free email service that allows a user to easily send, recall, erase, self-destruct and modify an email after it has been sent. BigString users have unprecedented control over all of their email, whether they choose to send it through the BigString.com website or even Microsoft Outlook.



It is inevitable. At one point or another in your life, you’ve sent an email to a colleague, client, family member or significant other that’s been highly regrettable. Even before pressing send, you knew it was a bad idea, yet you rolled the dice and clicked anyway, only to cringe at what you wrote later on.



http://www.BigString.com

I've used both Yahoo! and Gmail. But i've converted to BigString. Check it out.

Here's some info if your interested:
BigString (http://www.bigstring.com), the new free webmail program, offers revolutionary features. When you send mail from your BigString account, you are protected. BigString is like an automatic shredder for your email. You can self-destruct or change an email that's already been sent or read. Don't leave your messages sitting in peoples' inbox forever.

I've been using BigString, and found its a great way to send out emails that self-destruct! Its not yahoo!, so give it a try?