News letters

I am having a problem with news letters. I can only send one hundred at a time to hotmail accounts. Now i have 2500 hotmail accounts and I don't like sitting there and having to send to one group of a 100 at a time, it is very time consuming.

What products are out there that would let me does? And i heard that i can que my mail server to send them out one after the other but im not sure on how to do this?

Thanks

 

 

 

 

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