Want to know when I release something new? That’s what mailing lists are for. I only send mail when I have something new, because me writing one of those monthly or weekly newsletters would annoy all of us.
I have four mailing lists: nonfiction, fiction, sponsors, and crowdfund. Each will send you a confirmation email with a link to click. The fiction and nonfiction lists will also send welcome emails with free books. No matter how many lists you sign up for, if I send a message to more than one list you will get only one copy. (Technically these aren’t separate lists: they are groups within a single subscriber list.)
(Your ad blocker might block these forms or the subscription confirmation page. Ad blockers are necessary, but if your page is blank you’ll need to temporarily disable it here. If you want to more precisely debug, check your filters for “mailerlite.”)