I know that email is inherently insecure anyway, but considering that pretty much everyone that I send email to is using a large, somewhat-trusted cloud provider, (hint, starts with G) I would expect ...
I'm not an admin, I just created a website, and there's also a mail server on the server I payed for from my hosting provider. Most for what I learnt about mail servers is from an internet tutorials. ...
I'm trying to get the following metrics from my tcpdump log file: (1) one-way delay, (2) request/response delay, (3) packet loss, (4) overall transaction duration and (5) delay variation (jitter). ...