I'm in the process of splitting the functions of a single VM web server on Azure across two VMs on the same Vnet.
I want to check, can I assume that traffic between them is absolutely isolated and private?
For example, one will host an SMTP server, the other will host the web app that uses it.
Is it perfectly safe to ignore STARTTLS and simply send credentials in the clear, between them?
If so, can you point me to some kind of statement from Microsoft that affirms this privacy?
It seems obvious that this should be the case, and yet I'm finding it really hard to get definitive clarity on it.