Sorry for this simple question but I was wondering if this plugin works fine for blogs that have between 5 000 users and 20 000 users? (I'm hosted on a dedicated server.). I need a solution to send daily new posts for registered users and subscribers.
If it works for thousand and thousand users, why people may choose external services like mailchimp or AWeber?
Thank you for your help.
EDIT: I'm just seeing this thread http://wordpress.org/support/topic/slow-down-email?replies=2
So if I use this plugin it should work? So what's the difference with external services?