I need help automating mass emails I'm sending daily.
I'm trying to send out automated mass emails through a Gmail account (My Business uses Google Apps). I built a Java program that allows me to enter my credentials (gmail username & password), Subject Line, Email List, and enter is a body template. The program then sends out emails one at a time to each of the contacts which are in a comma delimited list. This isn't spam as I'm getting the users to submit their email address.
I got this Mail Delivery Message today: "Technical details of permanent failure: Message rejected." I read that Google will only allow a maximum of 100 recipients to any message through its smtp gateway - and there's a maximum of 500 messages in any 24 hr period.
I need a new strategy. How do I build a program to automate sending of ~100-200 emails a day? Do I need to be buying IP's, SMTP Servers, write a new PHP application? I need a place to start because this is out of my scope.