How to check if the unsubscribes via Unsubscribe URL or Unsubscribe via Gmail header?

bz87

New Member
Hello folks!

Is it possible to check or differentiate the unsubscribes that are via the Unsubscribe URL(bottom of email) or Unsubscribe via Gmail header?

Also are Unsubscribes via Gmail header reporting at campaign level?

Thanks as always!
 
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