Sending of message failed. The message could not be sent because the connection to SMTP server smtp.zoho.com timed out. Try again or contact your network administrator.

Sending of message failed. The message could not be sent because the connection to SMTP server smtp.zoho.com timed out. Try again or contact your network administrator.

Just started getting this message from my Thunderbird email client yesterday when trying to send.  Nothing has changed on my end.  Is Zoho having issues with SMTP that will be fixed?