Cox email censorship?
I've been trying to send an email from my Cox account to another Cox account and when I do, I get:
An error occurred while sending mail. The mail server responded: <email@example.com> message rejected. Refer to Error Codes section at www.cox.com/.../email-error-codes.html for more information. AUP#CXSNDR. Please check the message and try again.
The email is long and has the following link in it to a government website:
When I remove the link, the email goes through just fine.
If I send a short sentence with this link, it goes through just fine.
But long text with this email and I get the error.
When I call support, they tell me that I need to spend $10/ month on a support plan and they will help "fix" my Thunderbird email client. Rep says that if the problem ends up being on Cox's end that they will not give me a refund.
Is this a ploy to make more money from us?
I am baffled why this would be a problem on my end.
Also today I tried to respond to a perfectly valid commercial email message today and same error message. I have not played around with removing content, but this is unacceptable.