Zulip

Restart service - sudo su zulip -c '/home/zulip/deployments/current/scripts/restart-server'
Send test email - sudo su zulip -c '/home/zulip/deployments/current/manage.py send_test_email name@example.com'

EXTERNAL_HOST = 'chat.example.com'
ZULIP_ADMINISTRATOR = 'no-reply@example.com'
EMAIL_HOST = '10.1.1.111'
EMAIL_USE_TLS = False
EMAIL_PORT = 25
ADD_TOKENS_TO_NOREPLY_ADDRESS = False
NOREPLY_EMAIL_ADDRESS = 'no-reply@example.com'

zulip-secrets.conf

email_password = P@$$w0rD