Every so often I just opt out of emails.
I get tons of them asking me to review products once I have purchased them, too. (not from MFS). A few don't even have an "unsubscribe" feature. That is really really annoying. Then I have to write to people or call them and ask to be taken off.
I don't only get them from
vaping places so mailbox can really fill up every day. Some send me stuff daily......once a week would be okay, and once a month if nothing MAJOR is happening.