[{'role': 'user', 'content': "Analyze the following clause from a privacy policy and determine if it's fair or unfair. Also identify any privacy practices mentioned: b. Email Opt-Outs You may opt out of receiving promotional communications from Lookout by using the unsubscribe link within each email. Although opt-out requests are usually processed immediately, please allow ten (10) business days for a removal request to be processed. Even after you opt out from receiving promotional messages from us, you will continue to receive transactional and product-related messages from us regarding Lookout Services. You can opt-out of some of these notification messages in your account settings."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]