Outgoing Email Settings
We have found that some Operating system updates, especially on Apple OS and Windows, have been resetting the outgoing (SMTP) email settings. This means that your email application would fail on SMTP authentications with our mail server.
If your outgoing email (sending) has spontaneously stopped working, you should simply go to your SMTP outgoing email settings (in your email software) and re-enter the email address and password. Ensure that SMTP authentication is enabled, and SSL is enabled and port 465 is used.