Users can opt out of:

• Phone calls: Call the Blackboard Phone Hotline at "855-502-STOP (855-502-7867)".
• Text (SMS) messages: Reply STOP to any Blackboard system text or to "60680" for non-emergency messages. Reply STOP to "54968" to opt out of emergency messages.
• Emails: Click the unsubscribe link from any email they receive.

Users can opt back into:

• Phone calls: Call the Blackboard Phone Hotline at "855-502-STOP (855-502-7867)" from the phone line that has been opted out.
• Text (SMS) messages: Reply START to "60680" from the phone line that has been opted out for non-emergency messages. Reply START to "54968" for emergency messages.