I need the following:
VPN setup, 100k to 120k mails a day. DKIM, rDNS, rotating IP and the necessary setup to deliver mails the right way.
Since VPNs at my host can only send about 25k mails a day, i need this to be a multiple VPN setup that balances the sending load within the servers.
This setup, or any other setup (that you propose) that will acomplish the same is accepted, as long as i can use Mailwizz as my frontend.