How do I create or delete an inbox in Slack?
To create an inbox in Slack, invite MailClark to a channel.
Click on the settings gear at the top of the channel, select ‘Invite team members to join ...’
Then choose MailClark from your list of team members.
To delete an inbox, remove MailClark from the channel: Click the ‘Show Channel Details’ icon next to the settings gear at the top of the channel, click MailClark in the Members list, then choose ‘Remove from channel’.