Unable to send emails beginning on 10/31/23
I am able to receive emails from my Spectrum email account which comes with Spectrum Internet. But SENDING results in this ERROR message: Server Error: 550, Error Number: 0x800CCC78
The FULL ERROR MSG IS BELOW with my email removed for privacy:
The message could not be sent because the server rejected the sender's e-mail address. The sender's e-mail address was '****'. Subject 'Testing', Account: 'pop-server.san.rr.com', Server: 'smtp-server.san.rr.com', Protocol: SMTP, Server Response: '550 5.1.0 <****> sender rejected. The email address you are sending as must match the email address you used to auth. Please check your SMTP settings. AUP#Out-1500', Port: 25, Secure(SSL): No, Server Error: 550, Error Number: 0x800CCC78
I have not changed my email client settings which have worked flawlessly for over 20 years. And I can receive email using the same credentials.
Customer support could provide no help whatsoever except to say that "engineers have been working on the email system." I think reliable email, although supposedly "free" is a feature that Spectrum customers depend on.
Thanks for any information on what to do or how to fix the problem.