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To keep their systems safe, Google has the following 24-hour sending limits for individual accounts -- the 24-hour period is a rolling period:

  • 2,000 messages per day (Note: limits include vacation responder messages)
  • 10,000 messages forwarded per day (not included in daily sending limit)
  • 2,000 recipients (500 external recipients - external recipients are people outside of the domain) per message in the TO, CC, and BCC fields. 
    • Note: a listserv, or a Google Group counts as a single recipient, but a group created in your contact list counts as the number of people in the list
    • If you use POP or IMAP (e.g., Thunderbird, Outlook, Apple Mail), then the limit is 99 recipients per message
  • 3,000 external recipients per day
  • 3,000 unique recipients per day (individual addresses count once/day -- 2,000 external recipients)

Consequences of hitting sending limits:

If you exceed the Google Apps email sending limits, you may see an error message such as:

  • You have reached a limit for sending email
  • You reached a Gmail sending limit
  • You exceeded the maximum recipients

After reaching one of these limits, a user can't send new messages for up to 24 hours, but they can still access their account and receive incoming email. The Help Desk should be able to reset the account.

For more information on individual account limits or recommendations for sending bulk mail, see the google page here:

If you have any questions, feel free to submit a request at, or call the Help Desk at 262-6266.

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