I am going to use C# to write e-mails into the Pickup directory. Each e-mail will have a 3-5mb pdf attachment. There will be about 500-700 e-mails dropped into the pickup directory at one time. I setup a domain in IIS for my hostgator e-mail account which I would like to use to send out these e-mails.
Hostgator limits to 500 emails per hour. My internet connection speed is 3mb down and 768kb up.
How or where can I limit how many e-mails are sent out at a time in IIS? And what should the settings be?