I have a pure email address just for my travel emails. I have never received any spam to this address, so far.
I have had a security breach on my emails, but this was from an upset member of one of my companies. I have issues with a building manager at one of my companies. I did change my security details once I became aware of the issue.
I have noticed some spam on my property email address, after I changed the password on them I managed to reduce the spam.