@David-0 said in Use Cloudron Mailserver but have different Webhosting?:
Would it be possible to use Cloudron as a mail server for mail@new.com while the domain new.com (or even subdomain.new.com) is hosted somewhere else?
yes, the DNS records for a mail server (MX record) and webhosting (A records) are entirely different. It's totally normal and safe to host web and mail of the same domain on totally different systems.