Mail app and Spectrum email account not connecting

Thanks.Been there. Done that. Still doesn't work. After going through all the settings again, and entering the latest pw again, still get "unable to verify..."

There are some slight variations from the steps shown for mobil setup.

• There is only SMTP, no IMAP
• Authentication - no checkbox, it's a list choice: MD5 Challenge-Response, NTLM, Password, HTTP MD5 Digest. I chose Password and entered it.

I had even called and talked with a tech at Spectrum and Apple. They walked me through the steps. No fix. I will be calling them again. There has to be something I'm missing or there was a change made somewhere at Apple (latest OS update) or Spectrum (websites updates).

Finally got it working! Could not add or update account using the plus + button in Internet Accounts in System Settings. Could not add or update account using the plus + button in Mail Settings. When I used Add Account from the Mail menu (bar), I was able to add it. After doing this successfully on the Mac, the our iPhones and iPad updated after reboot.

I hope if anyone else experiences this, they will find this post. For me at least, it seems the only way to fix the problem is to specifically use "Add Account" from the "Mail menu bar".