Attempt to send test email in SolusVM fails:
Email not sent
SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting
SMTP Mail Type is selected in Dashboard > Configuration > General Settings > Mail, however SMTP settings set incorrectly.
To get more verbose output, enable debug flag on SolusVM Master server:
# touch /usr/local/solusvm/data/smtp-debug
Try to send test email once again and check for more detailed error message.
Verify that SMTP settings are set correctly, like hostname, port, user and password.