Here is the latest from cox.mail:
Error
Message could not be sent to the following recipients: [spamreport@cox.net] (451 - 451 4.2.0 146.20.112.67 has exceeded the number of messages allowed per hour and has therefore been blocked for a period of three hours. If you have not been knowingly sending large volumes of email, this may indicate that your computer is infected with a virus which is sending emails without your knowledge. Please scan your system for viruses as soon as possible. The block will automatically be lifted at the end of the three-hour period. Please visit http://ww2.cox.com/coxagainstspam for more information.
)