This is entirely untested, but MailChimp have a send campaign endpoint. They actually have a schedule campaign endpoint too, but I wouldn't be surprised if that has the same account limitations as you've already run in to.
But a simple cron job that hits the send campaign endpoint would be a very simple way of achieving a scheduled mailer.
Were you unable to achieve what you wanted by integrating MailChimp's API with a cron schedule or something more custom/sophisticated?
I've been thinking about automating some newsletter workflows in MailChimp and would be interested to know any dead ends you ran in to.
I just didn't want to pay Mailchimp just to schedule mails, so decided to go with Sendy right away.
Is it possible for free using their API?
This is entirely untested, but MailChimp have a send campaign endpoint. They actually have a schedule campaign endpoint too, but I wouldn't be surprised if that has the same account limitations as you've already run in to.
But a simple cron job that hits the send campaign endpoint would be a very simple way of achieving a scheduled mailer.
ah guess that could have worked on paper, actually haven't checked out the API for this purpose.
Mainly because at one point I would hit their limits anyhow, and they are just too expensive for me.