Major problems with Cox email

Hi AZ361, I apologize for the frustration this email issue has caused. Is this problem only impacting one of your Cox.net email accounts? When sending from Cox Webmail, do you get any errors? To help us better understand what's happening, please complete the following steps:
On your desktop computer, open an internet browser and go to myemail.cox.net or email.cox.net.
Log in with the Username of the email address unable to send email.
Click on the Settings gear icon and select Settings.
Under Basic Settings on the left side of the page, click on the triangle next to Inbox to expand the options.
Click on Auto Forward. If an auto-forward rule is set, ensure there's a check mark next to "Keep a copy of the message."
Click on Filter Rules. Review each rule to make sure none are blocking or deleting cox.net email.
Click on Blocked Senders. Ensure that your email address isn't listed.
Click on Spam Settings. Ensure that "No Spam filtering" or "Automatically deliver to Spam folder" is checked.
Click Compose at the top of the page to begin a new email.
Enter your full Cox.net email address in the To field and your Gmail address in the CC field.
Type "Test" in the Subject field and "This is a test." in the body of the email. Do not insert a signature.
Click the blue Send button. Do you get any errors or pop-up messages?
Click on Inbox at the top of the page, and then click on the Sent Objects (or SentMail) folder. Is your outgoing message displayed?
Click on Inbox at the top of the page and then click the Refresh button. Did your "test" email arrive? If no, check your Spam folder.
Did your "test" email arrive in your Gmail Inbox successfully?
We need to start our troubleshooting with Cox Webmail before trying to troubleshoot your email clients. The answers you provide to these questions will tell us how we need to proceed. -Becky, Cox Support Forums Moderator