Have you ever sent a beautifully written, compelling e-mail to your constituents, only to have several of them tell you that they never received it? The messages didn't bounce back to your in-box, so what happened?
Your message may be stuck in a spam filter. Spam filters are becoming more powerful to combat all those unsolicited mortgage ads, stock tips, and—ahem!—other annoying e-mails that clutter people's in-boxes. At the same time, however, they can prevent legitimate messages from reaching their destinations. By understanding how spam filters work, you can increase the chances that your e-mail won't end up in cyberlimbo.