ContributionsMost RecentMost LikesSolutionsRe: Cox has marked my email server as a spammer - how to resolve? Thanks for the info. Cox is the only ISP that is complaining. My wife does send some group emails, but never more than 15 recipients. We can send emails to many other domains without the issue. It should be simple for Cox to review the emails from our server and if they don't see anything nefarious then whitelist the server. You mentioned a 40 recipient rule - does Cox have a page detailing this and other requirements in enough detail that I can send to Siteground support? It would be best to have a tech from each company talk directly. Cox has marked my email server as a spammer - how to resolve? I am using Siteground Hosting for my business websites and email addresses. Cox has recently marked my email server's IP address as spam. At least I am getting non deliverable notices from Cox. I have tried from 2 separate email addresses and both have the same failure notices. Here is a copy of the message with personal info redacted: From:Mailer-Daemon@se19.mailspamprotection.com Reporting-MTA: dns; se19.mailspamprotection.com Action: failed Final-Recipient: rfc822;qqqqq.qqqqqq@cox.net Status: 5.0.0 Remote-MTA: dns; cxr.mx.a.cloudfilter.net Diagnostic-Code: smtp; 421 cxr-ibgw-5007a.stratus.cloudmark.com cmsmtp 146.66.121.163 blocked. Refer to Error Codes section at www.cox.com/.../email-error-codes.html for more information. AUP#CXCNCT: retry timeout exceeded The email server ip address that is being blocked is 146.66.121.163 and does not show up on any spam blacklists that I can see. I can give you the email addresses if you need them, but do not want to post them to a public forum. Re: I am unable to open foxnews.com via cox cable internet. Any idea when this will be resolved? Thanks. Re: I am unable to open foxnews.com via cox cable internet. Also, checking an order on Lowes fails for 2 day also. I can access both sites on my phone if I turn off wifi. Re: I am unable to open foxnews.com via cox cable internet. I have the same problem. I have rebooted the router, cleared computer cache, tried different browsers and 3 devices. I can ping and tracert foxnews.com, but in the browser it times out. Been happening 2 days so far.