on your system.
A bot would not normally be sending this type of mail to you, but would be sending stuff out from your machine to other places.
What you appear to have done is get yourself on a nasty email list and you will continue to get this type of mail until they get bored of sending it or you change your email.
Assuming you are using Apple Mail, then build yourself a spam rule that will drop these emails where they belong. You can do that with any email client.
I must have bitten on a spoof that asked for my email address, because for two weeks now I have been receiving dozens of emails, some clearly written by a bot (broken English), some porn sites, some perhaps legit business. I am running the latest version of OS X High Sierra, Apple mail, and Gmail. I can find nothing within OS X that would indicate I have a bot, but how else to explain this flurry of email crap? Any ideas would be appreciated.