The first time I had this happen (2014-ish), it was so bad that I stopped receiving all (automated) Disney physical mail, too. I had to email
D23 every quarter to get them to manually mail me a copy of the magazine. Around 2016-ish, I found the global opt-out/opt-in on The Walt Disney Company website, and did a hard toggle on it (completely unsubscribing, saving, then completely re-subscribing - I might have even waited a day between), and suddenly, I started getting emails and mailings again.
(If I'm not mistaken, I think that whole mess started when I tried unsubscribing from Disney Baby or something oddball like that, seeing as how I had no infants at the time and they were sending out an infuriating amount of email.)
I went back to the corporate website earlier this week and did a similar hard toggle on both Disneyland and WDW. (I also resubscribed to
ShopDisney, which I don't remember unsubscribing to, but it's possible.) Whatever I did seemed to work (maybe) - I ended up getting the Remy's Ratatouille Adventure AP preview email and the global Magic Key announcement email. (I'll have to wait for the next LP email to see if that one's fixed - if there even
is another LP email.)
I think the email stuff was screwed up years ago because their old mailing list system wasn't designed to handle self-subscribed mailing lists separately, and I still wonder if there might be some glitches related to that. (I wondered if resubbing to ShopDisney might have been the thing that actually broke the clog - assuming the clog is actually broken.)
Obviously, that's not really helpful - but maybe try unsubbing from one, leaving it for a day or two (or a week), and then resubbing. (ShopDisney sent me a "thanks for resubscribing" email, which at least signalled that something was working.)