[{'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: Notice. Notices must be sent via email, first class, airmail, or overnight courier and are deemed given when received. Notices to Customer may also be sent to the applicable account email address and are deemed given when sent. Notices to Dropbox must be sent to Dropbox Legal at contractnotices@dropbox.com, with a copy to Dropbox, Inc., P.O. Box 77767, San Francisco, CA 94107, attn.: Legal Department."}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Contact_E_Mail_Address_1stParty, Contact_Postal_Address_1stParty.'}]