In order to create a segment of unsubscribers, please follow this instruction:
Step 1: Go to Customers tab >> Manage Segment >> Create new segment
Step 2: Name your segment >> Choose condition of the segment: Have performed event with attribute Unsubscribe
Step 3: Save Segment and you're done.
Here is the instruction to manage customer segments in Mailbot.
We hope Mailbot will be your helpful Email Marketing assistant! Don't hesitate to contact us at firstname.lastname@example.org if you need further assistance.