Deliverability of email relies on a number of factors outside your control.
You also mention competance, which is available in variable quantities. You might be able to keep Exchange 2014 running solidly, but I've seen people doing scary things with MS SBS Server 2000 (and the exchange that comes with that).
You also mention competance, which is available in variable quantities. You might be able to keep Exchange 2014 running solidly, but I've seen people doing scary things with MS SBS Server 2000 (and the exchange that comes with that).