hi guys
there is something i cant understand,everybody does it but i cant understand how.
i want to start sending 10k email a day (those are not spam emails but emails that i got from someone so there is some obtin and some not)

what i dont understand is how to do it

if i have shared hosting and create script that read the database and send it i ubnderstand that there max emails limit perday (1000 or something)

if i rent dedicated server and installed program like groupmail what else i need or what smtp do i need to use in order to send this amount of mails

and is there a service that i can rent smtp server that allow me to send this amount of email throw my desktop?

what am i miss is there other way to do it?
can someone help me with this issue?

thanks in advance