Where to install iredmail mail server on hetzner cloud or vds?

Question

Mail server

Good afternoon dear experts. Tell me, is it possible to use the iredmail mail server on hetzner cloud in combat? Are all standard ports available? Is it possible to customize the ptr record? I plan to use the tariff: CPU 2 vCore(s), 8 GB RAM, 80 GB SSD, Local RAID. Load up to 30 users.
Confuses the price for the cloud - 9 euros. Their cheapest VDS is 21.85 Euros.
VDS will be more stable in operation?

Answer 1

They do not have VDS, what used to be VDS, they now call it cloud. That is a virtual machine.
You can create a PTR yourself here (it's a robot) (after you have a server)
Ports are all available through the same page, you can create rules if you don't want to fiddle with the firewall on the server itself. But this firewall (through a robot) is not statefull, so it is not very convenient.