I am using Cold Fusion 10,0,9,284568 which was installed as part of a software package purchased f

I am using Cold Fusion  10,0,9,284568  which was installed as part of a software package purchased from a third party called Sunapsis. This software prepares mass email messages to be sent to our students however, our servers are limited as to how many message can go out at a time. Because of this we are only able to send about 25-30 emails out of a 1000 the rest go into an undelivr directory. I can take those and resend them but I still only get out about 25. Is there a feature in adobe that allows us to send mass email in smaller groups?