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Joining or leaving groups

Groups.io provides several ways that prospective members can join (subscribe to) groups:

  • Find a group in Groups.io’s public list of groups and submit a request to join.
  • Receive and respond to an invitation from a group owner or moderator to join the group.
  • Receive a notice from a group owner or moderator that you have been directly added to a group.
  • Send an email message to the group’s subscription email address.

Group owners set the default email message delivery method for their groups. However, after you join a group, you can select a different delivery method for that group’s email messages as well as use other options to help you manage messages. See Subscription page.

Updated: July 30, 2025