I need to send a newsletter every week to 150,000 users.
I currently use sendblaster ( http://www.sendblaster.com/
) but with that amount of mails it takes about 40 hours to complete the task, and with some bugs in the software i need an alternative.
I was thinking about the aplication that send the emails is installed directly in my datacenter server.
Maybe like some bash script or php script that place a proccess in linux and not need to run with a browser open.