limit outbound connections?

[ewilen]

As a (hopefully) temporary measure to limit bandwidth usage when a user sends a large message to a big non-local recipient list, I've been asked to look into limiting the number of simultaneous outbound connections that Zimbra will initiate. This was pretty simple on our old (non-zimbra) server but I don't see an option in the Admin GUI.

I've read suggestions on the forum to use policyd but it's not clear if it would work (at all) let alone be appropriate for this purpose.

[ewilen]

Okay, based on Re: limit outgoing smtp connections and Postfix manual - master(5) it sounds like I can edit /opt/zimbra/postfix/conf/master.cf.in and change

smtp      unix  -       -       n       -       -       smtp

to

smtp      unix  -       -       n       -       VALUE       smtp

where VALUE=the maximum simultaneous outbound connections. Then zmmtactl restart.

Sound right?