Itz easy to limit emails/per hour in cpanel server by go to WHM – Tweak settings and find the option “emails per hour for a domain” and set the limit. “0? means there is no limit. How can we set the limit for a domain for each day as an exception? For that, edit the file,
#vi /var/cpanel/maxemails
and add the line,
domain.com=500
Replace domain.com with the domain name you want to set the limit. Then run the command,
#/scripts/build_maxemails_config
