Cox's email platform was recently upgraded, I'd check to see if you're using TLS instead of the SSL 3.0 and below. I would third the recommendation to get off of Cox's email platform, and I'm writing this sitting in Cox's Atlanta NOC. From what I've seen, our IT/Data side is moving away from anything customer facing that isn't automated and revenue friendly - e-mail is a part of that bit bucket. 



On Mon, Oct 14, 2019 at 10:26 PM mike enriquez <mylinux@cox.net> wrote:

Cox has new policies. A friend in my area uses incredimail and he has the same issues with cox.

I can receive email but I cannot send it out. I am currently using Cox Webmail.

Thanks for the comments everyone.

Mike Enriquez

On October 14, 2019 at 8:52 PM Matthew Crews <mailinglists@mattcrews.com> wrote:


On 10/14/19 10:55 AM, mike enriquez wrote:
I have a fresh install of Ubuntu and Thunderbird email client.  The SMTP
server keeps timing out. Cox cannot help me because I have a Linux
computer. I changed the Port numbers and still I cannot send email out.

I am sending this via Web-mail.

Does anyone have and ideas I should try.

That's odd. I used Cox email for years with Thunderbird without issues.
Maybe they changed something on their back end?

Are you sure you are connecting to the correct SMTP server?

Also Cox should not care what operating system you are using.
Thunderbird is OS agnostic software. Their instructions for using
Thunderbird on Windows should be sufficient.

-Matt

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