I have been given a task to setup email management and delivery for a smallish social network. We're currently sending out about 1000 emails per day with help of VerticalResponse (a bulk emailing company). But for flexiblility reasons and to save costs in long term we now plan to setup our own systems.
I know how to send mails using PHP (a mix of PHPList and custom emails using SwiftMailer, and then we have pear packages Mail Queue etc.). But I don't understand the SMTP relay part. How should I setup the mail transfers. Please suggest mail server options that I have. Assume that I will need to send around 5000 personalized emails per day.
Think of any social network here, I get email notifications for friend requests, messages, buzzes, a weekly email digest etc. Please suggest.
For example I get facebook emails from facebookmail.com and linkedin emails from bounce.linkedin.com. Even I would want to do it that way.
is this what I'm looking for? http://www.dyndns.com/services/mailhop/outbound.html