Admin will be asked to authorize the bot to send invitations, once.
Share the public page that lets users join Slack without an invitation.
Users get an email inviting them to join your team on behalf of the Slack Admin that has installed the bot.
Optionally, turn on administrative approval with set approval on.
When a user asks to join a team, Slack admins are DMed join requests that can be approved or ignored.
You can change which Slack admin sends invitations with set sender @username.
You can try this bot for free for 2 weeks without a credit card or personal info.
Subscribe for $9.99/yr thereafter. Will auto-renew.
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