limit the number of recipients per email

==== Required information ====
- iRedMail version:
0.8.4
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):
mysql
- Linux/BSD distribution name and version:
Debian
- Related log if you're reporting an issue:
====

Is their a way to limit the number of recipients per email vs. time period?

Thanks,
Steven