Google has been well known for policing click fraud on its AdSense service. But Digital Inspiration has recently unearthed information about Google policing its Gmail service.

Google decides how many people you can send an email at a time. 100 from POP or IMAP clients and 500 from the web client. Also, Google will penalize your account if a lot of emails you send bounce back due to failed delivery.

Have you had any such experience with Google policing your use of Gmail?