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.