I'm new to James Mail Server and I would appreciate it if some of you could help me on my task.. I'm required to build a newsletter system that could send mass mail (>=100,000 subscribers) to members of a site without being marked as spam. The problem is the actual sending. The site is developed under php & postgresql but still I think that selecting >100,000 emails from the database and sending them at once is a bit extreme... :)
How can I send them in small parts so all of the emails get sent within a day or two? What's the right approach to this problem? Will a server with 8 cores and 4gb ram + about 30,000 unique users every day be able to handle the traffic of the live site and sending mails at the same time ? What should I monitor mostly to prevent eventual problems ?
I would really appreciate any help or directions! I have never written a newsletter for such a big number of subscribers....
P.S. The good old free software solutions available out there will not work for me as I'm required to create a customized newsletter which has to be integrated in the site's admin control panel...
Thanks in advance!