We have installed Horde Groupware 5.0.4 as the webmail application and required to limit the number of emails sent by an authoritative user through the horde IMP application. After referring several online documents, I was aware that it should be done through the Horde admin panel.
In Admin control panel, under the permissions I added a new permission to IMP and enabled all Show/Read/Write/Delete to all authenticated users and then added another child permission to IMP to set the "Maximum Number of Recipients per Time Period (max_timelimit)". The number of recipients were set to a reasonable amount as desired.
This enables the rate limiting for outgoing emails through the Horde interface.
Good Reference:
http://www.se.cuhk.edu.hk/~hmleung/wordpress/?p=1264
In Admin control panel, under the permissions I added a new permission to IMP and enabled all Show/Read/Write/Delete to all authenticated users and then added another child permission to IMP to set the "Maximum Number of Recipients per Time Period (max_timelimit)". The number of recipients were set to a reasonable amount as desired.
This enables the rate limiting for outgoing emails through the Horde interface.
Good Reference:
http://www.se.cuhk.edu.hk/~hmleung/wordpress/?p=1264