Disabling the email service for AKA or subdomains

# Status anzeigen lassen
/usr/local/psa/bin/domain -i example.com | grep “Mail service”
Mail service: On
# E-Mail-Dienst deaktivieren
/usr/local/psa/bin/domain -u example.com -mail_service false
SUCCESS: Update of domain 'example.com' completed.
 
/usr/local/psa/bin/domain -i example.com | grep “Mail service”
Mail service: Off

In the case, that you want to activate it again this goes as follows:

/usr/local/psa/bin/domain -u example.com -mail_service true
/usr/local/psa/bin/domain -i example.com | grep “Mail service”
Mail service: On