Group owners and moderators can invite prospective members to join their groups by sending email invitations. In many cases, such groups will not be listed in the public directory on Groups.io.

If you receive an emailed invitation to join a group:

• The subject line of the email message will be “Invitation to join the groupname@groups.io group” (with the actual group’s name in place of groupname).
• A personal note from the group owner or moderator who sent the invitation might be included in the text of the message.
• You can accept the invitation by replying to the email or clicking a link to accept the invitation on the group’s website. Be aware that the link will expire 14 days after the invitation was sent.

Note:

• If you do not already have a Groups.io account when you accept an invitation to join a group, you will receive an email from Groups.io asking you to confirm your subscription.
• If a group owner or moderator informs you that they invited you to join the group, but you have not received the invitation email, check the spam folder in your email application. If the invitation ended up in that folder, ensure that you mark it as not spam so your email provider’s filters will start learning to accept messages from the groups.io domain as legitimate.