[imp] Message limits?

[Kevin Konowalec]

I might be blind... or it could just be friday... but I can't seem to  
find where you can set the maximum number of recipients a user can  
send to in the latest version of horde/imp.

In our production version (horde 3.1.4, imp 4.1.4) I've hacked  
compose.php so that it has a maximum recipients per message limit  and  
a maximum recipients per session limit.  I'd like to be able to do  
something similar on the new version - hopefully without hacking the  
source (I'm trying to do as little of that in the new version as  
possible).

So if anyone can point me to where I'd set limits like that in imp 4.2  
I'd appreciate it.

K