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Limit typeLimit
Messages per day
Daily sending limit*
Messages auto-forwarded
Messages automatically forwarded from another account, not included in the daily sending limit
Auto-forward mail filters
Account filters that automatically forward mail
Recipients per message
Addresses in the To, Cc, and Bcc fields of a single email*
2,000 (500 external)
Recipients per message sent via SMTP (by POP or IMAP users) or the Gmail API
Addresses in the To, Cc, and Bcc fields of a single email. Includes email sent using or*
Total recipients per day
Individual addresses count in every mail sent; 5 emails sent to 10 addresses count as 50 recipients*
External recipients per day
Email addresses outside your primary domain, including domain aliases and alternate domains
Unique recipients per day
Individual addresses count once a day; 5 emails sent to 10 addresses count as 10 unique recipients*
3,000 (2,000 external)


  • Stagger mass communications over 2 days—Send messages to one group of recipients, wait 24 hours, and then send to another group.
  • Send mail to a group address—Send mail to many email addresses using a single group address. For example, contact all users in your organization by adding everyone in the domain to an email list. For more details, see Groups and Group policies and limits.
  • Use a Marketplace solution—Many third-party developers offer apps for sending bulk mailings. For ideas, go to the G Suite Marketplace.
    Note: Google does not offer technical support for Marketplace apps. Marketplace solutions are created by third-party developers for a general audience.
  • Build an App Engine solution—Developers can increase mail limits by building a customized application. See App Engine for mail.
  • Use a local mail server—If you have a local mail server, use it to send mail directly to recipients to avoid sending limits. This local server should also be added to your SPF record to stop the messages from being marked as spam.
  • Review bulk sending guidelines and best practices—Some email recipients might report bulk messages as spam. Therefore, you need to ensure that all recipients are willing to receive the emails. You can also check email settings for any incorrectly configured forwarding rules or filters. For details, see our bulk sending guidelines and best practices.