These limits apply to all G Suite editions. Limits for trial accounts are lower.
As a security measure, the Google Groups for Business service has limits for message activity, group size, invitations, and membership. If you reach one of the limits, your activity is temporarily restricted. The restriction typically lasts an hour but can last as long as 24 hours. Learn more about the Groups for Business service.
The value of these limits can change without notice to protect Google's infrastructure.
|Total recipients* per group||Maximum total recipients a single group can send to||6,200,000 per hour***|
|Total external recipients** per group||Maximum number of external recipients a single group can send to||50,000 per day|
|Total external recipients** per G Suite account||Maximum number of external recipients all groups in your G Suite account can send to||100,000 per day|
|Total inbound emails per group||Maximum number of emails a group can accept from all senders combined||300 per 5 minutes|
|Total emails per sender to any one specific group||Maximum number of emails any one sender can send to any one group||1,800 per hour***|
|Total message size||Maximum total gigabytes (GB) a single group can send||2.4 GB per hour***|
|Total emails per internal sender, across all groups in your G Suite account||Maximum number of emails from a single internal sender to all groups within your G Suite account||18,000 per hour***|
|Total emails per external sender****, across all groups in your G Suite account||Maximum number of emails from a single external sender to all groups within your G Suite account||1,800 per hour***|
|Forwarding and Cc limit for Collaborative inbox groups||Emails forwarded or Cc'd from Collaborative inboxes||25 email addresses per message|
* Total recipients is the total number of recipients, not the total number of unique recipients. For example, if one of the group members is a subgroup that has two members, the subgroup counts as three recipients: the subgroup and its two members. Learn more about subgroups.
** External recipients are recipients that are outside of your G Suite account. For G Suite accounts with multiple domains, recipients in all associated domains count as internal recipients. Learn more about multiple domains.
*** Per hour limits are an aggregate total across all groups in your account. A per minute rate limit also applies for new users.
**** External senders who are not G Suite customers have a lower sending limit.
Group invitation and size limits only apply to actions performed in the Google Groups UI, groups.google.com. Groups administrators can add more members to a group using the Admin console or the G Suite Admin SDK Directory API.
Note: Limits for G Suite trial users are lower and additional limits apply.
|Joins per day||Maximum number of groups a single user can join in a day||30 per day|
|Creations per week||Maximum number of groups a single user can create in a week||5 per week|
|External member* additions at one time||Maximum number of external members that can be added at one time using web interface||10 per session|
|External member* additions per day, per group||Maximum number of external members that can be added to a single group in a day||100 per day, per group|
|External member* invitations per day, per group||Maximum number of external members that can be invited to a single group in a day||500 per day, per group|
* External members are group members that are outside of your G Suite account. For G Suite accounts with multiple domains, members in all associated domains count as internal members. Learn more about multiple domains.
If you're the owner or manager of a group, it counts as two memberships, one as a group member and one as the owner or manager. A user is an indirect member of a group if they belong to a different group that's nested in the group. Learn more about nested groups.
|Direct membership||Maximum number of groups a user can be a direct member of
Note: This limitation also applies to Groups. That is, a Group can be a member of 2,000 Groups directly.
|Combined direct and indirect membership||Maximum number of groups a user can be a direct or indirect member of
Note: This limitation also applies to Groups. That is, a Group can be a direct or indirect member of 5,000 Groups.
If you're using Google Groups through a G Suite trial account, your sending limits might be lower than those stated above. Sending limits are automatically increased at the end of your trial period.
Important: Sending limits are not increased during your trial period. Your account must have started a subscription and ended the trial period before sending limits can be increased.
To end your trial and convert to a paid account, see Set up paid G Suite service.