On 12/04/2017 04:06 PM, Grant Taylor via NANOG wrote:
In my naive opinion, there are some subtle differences with where "the
linux box you can ssh into" resides.
Namely, when I ran my server at home, it took a search warrant to
legally enter my house to access the server, which I would be
immediately made aware of. I can't say the same with the same degree
of certainty for a server located in a co-location facility.
I'm obviously ignoring someone compromising the system across the
network. Though even then, I can disconnect the server from the
outside world and still access it from my home.
If you're really worried about this, separate your mail storage from the
mail transport. Run an inbound and outbound smarthost on your $5 VPS to
queue up mail and deliver it back to your house where your long term
mail is stored. This gives you the benefit of the static IP at the VPS
along with the security and cheap storage of having the mail storage in
house.
If you're worried about the short amount of time that messages are
queued up on your VPS before making it to your house then you really
shouldn't be communicating over email.