Unsubscribe Reason "lead unsubscribed from list unsubscribe"

[Anonymous]

Sometimes Marketo automatically unsubscribes people with the reason being "lead unsubscribed from list unsubscribe". Anyone knows what that means?

[SanfordWhiteman · Accepted solution]

It means the lead sent an email to the special list-unsubscribe address that's present in the headers of all outbound Marketo emails. Most likely they didn't compose the email manually, but rather clicked an "Unsubscribe" button provided by their email app.

[Anonymous]

Thanks, Sanford!