I am using Thunderbird Mail on my windows 10 pc. For years I have had not problems with my mail. Now when I try to send mail with stationary the background for may mail I get this message.
An error occurred while sending mail.
The mail server responded: <*** Email address is removed for privacy ***> message rejected. Refer to Error Codes section at https://www.cox.com/residential/support/email-error-codes.html for more information. AUP#CXSNDR. Please check the message and try again.
I contacted Cox and they stated that for what ever reason the 3rd party mail servers such as Windows Live Mail 2011 & Thunderbird are not communicating properly with Cox. They said the problem is on the 3rd party mail server side.
I also use to create my backgrounds in my Windows Live Mail 2011 on my windows 7 through my Windows live mail, adding stationary and music, I also had the ability to go thru Internet Explorer (which I understand is not longer supported) which was still operable to send pages direct thru Windows Live Mail and has also been stopped for what ever reason. I prefer Windows Live mail to Thunderbird but on windows 10 I am not able to use my Windows Live Mail 2011 with the same capabilities.
Is there some settings that can be adjusted to allow me to continue with the capabilites I recently had to again create my stationary/music pages to send thru Windows Live Mail or even maybe thru Windows Outlook Mail? See the error message I get when I try to send mail from Internet Explorer thru my Windows Live Mail account.
An unknown error has occured.
Subject 'Sweet Peace'
Server error: 550
Server Response: 550 <*** Email address is removed for privacy ***> message rejected. Refer to Error Codes section at https://www.cox.com/resedential/support/email-error-codes,html for more information. AUP#CXSNDR
Server. 'smtp.cox.net'
Windows Live Mail Error ID0x800CCC69
Protocol: SMTP
Port 465
Secure(SSL): Yes
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