I found my Cox smtp problem. Cox was having trouble with reverse DNS 
locating my IP address. I turned off my VPN and I can send out email.  I 
am going to turn on my VPN. If I have to choose I will select VPN over 
SMTP problems.

Thanks to all who replied.

Mike Enriquez

On 10/14/19 7:38 PM, Thomas Scott wrote:
> 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.
>
> <https://about.me/thomas.scott?promo=email_sig&utm_source=product&utm_medium=email_sig&utm_campaign=edit_panel&utm_content=thumb> 
> 	
> Thomas Scott
> about.me/thomas.scott 
> <https://about.me/thomas.scott?promo=email_sig&utm_source=product&utm_medium=email_sig&utm_campaign=edit_panel&utm_content=thumb> 
>
>
>
>
> On Mon, Oct 14, 2019 at 10:26 PM mike enriquez <mylinux@cox.net 
> <mailto: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 <mailto: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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