Hi pfg,
Yes, you can get certificates for any subdomain combination. Note that you will have to pass the domain ownership challenge for each domain separately (i.e. passing the ownership challenge for simonbell.com does not automatically allow you to get certificates for any subdomain of simonbell.com).
If i list ventureone.com, docs.ventureone.com, mail.ventureone.com, sales.venture.ventureone.com in the certificate request how can i pass the domain ownership challenge? Would all of these domains have to map to the same server IP and would the request to be made from that server?
Thanks.