Looking at Vultr and experimenting with it, I just noticed they have an Anti-spam Policy - Vultr.com that would prevent me from sending 200k-300k emails per month from Discourse, which is the case for our rather small community.
Please share your experience with sending multiple emails with other hosting providers. This policy is reasonable but disappointing. Why do they limit me if I am not doing anything wrong. What do you think? I sent them a request and they answered this:
On our platform we consider the size of emails that you plan to send as “bulk,” and unfortunately we do not allow that type of activity.
What about Hetzner, DigitalOcean and other popular ones?