Edit file /etc/vfilters/yourdomain.com and paste the following rule :
Code:
# Exim filter #Rule1 if $message_body_size is above 3M then mail to $sender_address from bounce@yourdomain.com subject \"RE: $header_subject:\" fail \"Your message was over 3MB size limit and so it was not delivered.\" seen finish endif
Save changes and exit.
Now edit /home/username/.cpanel/filter.yaml and paste the following rule :
Code:
--- filter: - actions: - action: fail dest: Your message was over 3MB size limit and so it was not delivered. filtername: Rule1 rules: - match: is opt: or part: \"$message_body_size:\" val: 3M
Save changes and exit.