The FTC issued its Final Rule concerning certain aspects of the CAN-SPAM Act May 12, 2008. The Final Rule: (a) allows multiple marketers to designate an otherwise legally qualified entity as the single “sender” for purposes of compliance. The sender still must comply with the opt out, identification and other requirements of the Act, but no longer must be the entity that controls all the content or determines all the email addresses to which the message will be sent. In practice, this means only the designated sender (not the other marketers) needs to honor opt-out requests, and only the designated sender needs to have a physical address in the message; (b) prohibits conditioning an opt-out request on paying a fee or providing some personal information other than an email address; (c) allows senders to use a P.O. Box as the physical address if they have accurately registered the P.O. Box with the United States Postal Service; and (d) defines the word “person” to include business entities. As part of its ruling, the FTC also refused to change the amount of time (10 business days) a sender has to comply with an opt out request from an email recipient, and also rejected putting any time limits on how long an opt-out request from a recipient would remain valid and in effect.