Just found a nice hosting provider that actually have some customers in the taxi and transport segment.

The provider offer emailsservices, webhosting, dns services. So far so good.

The only problem that I can find here is that everything is hosted on one single IP.
The DNS-servers, the mail server and webserver is one fucking server.

Scenario 1)
Boss: we need to make it cheap, which means easy to maintain. We therefore only buy one big server so you guys will only have to maintain one server!
Sys admins: what could possibly go wrong

Scenario 2)
They have one public facing ip, that then is routed to an array of loadbalancers which interm split the traffic by type and domain (something like aws route 53)

Likelyhood:
Scenario 1: 99%
Scenario 2: 1%

Scenario 3: they have jack shit for running capital so they cheaped out and purchased one static IP, preferring port allocation instead of IP allocation. Theoretically sound, practically problematic.