Need ideas for a mail script

A couple weeks ago, I tried to send a group email out. There are like 500 people in this group. I kept having these failures or weird stalls when I tried to send them all at once. I dont know if it was my bandwidth, or gmail, or what. So, I manually went through it and sent them out in groups of 30 or so. That worked fine. So, I was wondering if anyone could give me ideas of a script that could go through and send a message in large groups…like the first thirty, second thirty, ect. Thanks in advance.

The standard number for smtp deliveries is 100 recipients (I think).

I already wrote my own, so I will use a link :stuck_out_tongue:

http://homepage.mac.com/julifos/soft/newsletter/index.html

Fully AppleScript driven, email engine: Xmail.

Open-source under request.

Thanks!