Understand Groups policies and limits
These limits apply for all G Suite editions. Limits for trial account users are lower.
As a security measure, Google Groups for Business limits 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. For details on trial account limits, see Gmail sending limits.
The value of these limits can change without notice to protect Google's infrastructure.
All recipient counts refer to the total number of recipients, not the total number of unique recipients. For example, if one of the group members is another group consisting of two users, it counts as three recipients (the group and its two members).
|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 domain||Maximum number of external recipients* all groups in your domain can send to**||100,000 per day|
|Total inbound emails per group||Maximum number of emails a group can accept||300 per 5 minutes|
|Total message size||Maximum total gigabytes (GB) a single group can send||2.4 GB per hour|
|Total messages per sender to any one specific group||Maximum number of messages any one sender can send to any one specific group||1,800 per hour|
|Total messages per internal sender, across all groups in your domain||Maximum number of messages from a single internal sender to all groups within your domain**||18,000 per hour|
|Total messages per external sender, across all groups in your domain||Maximum number of messages from a single external sender to all groups within your domain**||1,800 per hour|
* External recipients are recipients that are outside of your G Suite account. For customer accounts with multiple domains, recipients in all associated domains count as internal recipients. The limit on external recipients increases with the size of the G Suite account.
** Limit is computed as an aggregate total, across all groups in your domain.
Group invitation and size limits only apply to actions performed in the Groups web interface. Domain administrators can add more members to a group using the Google Admin console or the G Suite Admin SDK Directory API.
Note: Limits for G Suite trial users are lower.
|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 recipients are recipients that are outside of your domain.
If you are 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.
|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.