Question : How do I allocate an X amount of bandwidth...

we have a Fortigate Fortinet 100a v4.0,build0279,100519 (MR2 Patch 1)

I would like to know how do I allocate a specific amount of bandwidth for e-mail, and for that bandwidth not to go over.  We have an issue right now where if our sales team sends email blasts to a lot of people, it chews up all the bandwidth we have and in result kicks our users who use RDP to connect to our site off and they can not do anything.  If it does not kick them out, it hangs for periods at a time until the exchange queues clear out (which can take some time, especially when its 600 emails being sent out)

Anyone have this same issue or know a remedy to this issue?

Answer : How do I allocate an X amount of bandwidth...

hi
Let me try to rephrase your problem.
Your problem is email-blasts are chewing-up your bandwidth.

What you can do is - have a web-based email blast software and solve the whole bandwidth issue in 1-shot.

messing with Firewall / exchange / bandwidth throttling = there are too many things which can break and it will be difficult when you have a real issue, to troubleshoot where things are going wrong.

The easiest I think is Php List
http://www.phplist.com/

You can download and set this up in about 2 hrs on your Apache/mysql

Or you can go for the hosted account.
Each sales guy will get their own login - and they can control email delivery much better with advanced reporting than they can with emails from outlook.
 
Other options are
Lyris - which can verify whether an email was delivered to inbox or junk mail folder
http://www.lyris.com/solutions/lyris-hq/email-delivery/

and EmailReach with Inbox monitor
http://www.emailreach.com/Default.aspx

hope this helps.