ContributionsMost RecentMost LikesSolutionsCan't send e-mails I saw this same question asked last September with not solution, so I need to revisit. I cannot send e-mails through Cox. That is using either Cox webmail, enhanced mail or MAC Mail. The error message is: " The message was not sent to cmatthewsri@cox.net. There are several reasons why this may have occurred: 1) You may have exceeded the allowable sending limit via WebMail. If you have knowingly been sending numerous messages within a short time period, you may be blocked from sending additional messages for a period of three hours, at which time the block will be automatically lifted. 2) The content of your message may be considered spam by our anti-spam systems, and has therefore been blocked. Try sending an empty test message to yourself to see if you can receive it. If you receive it, this would indicate that the blocked message is considered spam. Please visit http://coxagainstspam.cox.net for more information. 3) There may be a temporary system problem or maintenance which is causing the failure. Please visit http://status.cox.net for current information about such issues. In this case, the service will be restored as soon as possible." I know I did not send spam, and the Cox service is not down. Some how I am exceeding the sending limits, which I am not. I bought an IMac in August 2012. This problem started slowly at the end of September 2012 where I could not send e-mail on occasion. The problem got worse and worse. When I started the quest a couple of weeks ago with Cox Tech Support to solve the problem, sending came to a dead stop. It was suggested that a virus on either the Mac or 2 laptops was spamming without me knowing it. After disconnecting all computers, then systematically reconnecting them, I found that I could send for a day then the problem would return. So, I could not isolate one specific computer as the problem computer. I believe this is a Cox problem, which Cox Tech Support can't help me with. So, is this a Cox problem or is it a home computer problem? I am disgusted that I can't find a solution. I am switching to gmail today!