I used to work for ClearChannel, and this was the case with many of their properties such as Rush Limbaugh, Jim Rome, etc. An unsubscribe would be recorded in

I used to work for ClearChannel, and this was the case with many of their properties such as Rush Limbaugh, Jim Rome, etc. An unsubscribe would be recorded in a local database immediately, but the email provider would sync their database with ours every Friday at midnight. So an unsubscribe on Saturday morning would take at most 5 business days. The user was quoted 7-10 business days just to be safe.