[horde] Restricting mail in Imp

[Chuck Hagenbuch]

Quoting Kevin Konowalec <webadmin at ualberta.ca>:

> Is there a quick hack we can use in the meantime to restrict the
> number of recipients a message can have?  We've had to deal with
> several compromised accounts in the last few weeks that have resulted
> in a lot of spam being sent out from our system.  I need to restrict
> this ASAP but won't put 4.1 beta into a production environment so I
> need an interim solution that won't require major surgery.

By far the most effective solution would be to do this at the MTA level.

-chuck