@grannydo -- Since the error states “ESMTP server not available” this indicates a delivery failure. If you are seeing this message “from remote mail server after RCPT” then it is an issue with the recipient server. It is not currently able to receive E-mail.
To what domain-name --- the part after the "@" are you trying to send?
> It looks like the email is being sent as I get a copy in my sent email folder.
Your message has successfully been sent from your computer to Shaw's E-mail server. However, that does not indicate that Shaw's mail-server was able to send to the recipients's mail-server. For example, if you were sending to support@telus.net, and the mail-server for "telus.net" was offline, your intended recipient would not receive your message. Mail-servers are configured to try multiple times, say once per hour for three days, to try to overcome any "temporary" outage. You may not notice that it took several hours for the recipient to see your message.
