It doesn't matter. It still landed somewhere you had access to. It doesn't have to be your own computer. Actually, it's worse if it lands in an internet email account - they have so many customers it doesn't hurt them in the slightest to hang someone out to dry.
I've been a network email administrator amongst other related things for almost three decades. What kind of experience do you have with this sort of thing?
Question: If someone walks by your house/apartment, stuffs your mailbox with child porn, then arranges to have someone call the police asking them (in not so many words) to look at your mailbox, are you guilty?
"Tight spam filters" aren't. "Tight controls" aren't. Not when it comes to email. Who cares whether you "opened" the message or not? Possession is 9/10s of the law. The imap protocol is a nice convenience, but it has extinguished any traditional concept of possession.
I have over 30 years experience with electronic mail mostly as a developer (the faceless programmer who has to write the code to make the stuff work) and I also work for the company that routes most of the internet packets in the world. What's yours?
“I’ve been a network email administrator amongst other related things for almost three decades.”
As a child I dreamed of the possibility of one day becoming a Network Email Administrator. Do you have any idea how much I could expect to make as a relatively inexperienced Network Email Administrator? In American dollars, of course, although I’m not averse to the possibility of travel to remote and exotic locations in the execution of my duties as a Network Email Administrator. Have laptop, will travel, as they say.
Thank you for any help you can provide. I look forward to joining your ranks.