Google Apps Sending limits

Google has a number of sending limits in place to prevent abuse of our system, and to help fight spam. If one of your mail accounts reaches an abuse limit, the account will be temporarily unable to send mail.

Each Google Apps account can currently send to 500 external recipients per day. Google Apps for Business and Education users can send to 2000 external recipients per day. The email addresses can be distributed among the To:, Cc:, and Bcc: fields. Administrators can contact all user accounts within the domain by adding everyone in the domain to an email list.

Here are a few additional tips:

• Stagger mass communications over the course of two days. For example, send messages to the allotted number of recipients on day one, wait for 24 hours, and send messages to another group of recipients on day two.
• In all editions of Google Apps, an individual message can be sent to a maximum of 500 external recipients at one time.
• If you use an IMAP client (e.g., Apple Mail), you may only send a message to 100 people at a time. 

Google Apps Spam and abuse policy

When you sign up for a Google Apps acount, you agree not to use the account to send spam, distribute viruses, or otherwise abuse the service. All users on your domain are subject to these agreements, which are part of the Google Apps Acceptable Use Policy.

If Google identifies a Google Apps user who is violating these agreements, we reserve the right to immediately suspend the user. If the problem is domain-wide, we reserve the right to suspend the entire account and deny administrator access to all the Google Apps services. In such cases, we send a notification to the registered secondary email address for the domain administrator.

If you identify a Google Apps user who is violating these agreements, at your domain or another domain, you can report the abuse to Google by sending an email message to abuse@domain.com or postmaster@domain.com, where domain.com is the domain where the abuse occurs. Google monitors these addresses for every domain registered with Google Apps.

Since abuse and postmaster are reserved aliases, you cannot to use them as user names or aliases. You can, however, subscribe to them and receive all mail sent to these addresses. (Learn more)