I've been running my own MX for my business for a couple decades. I've never had trouble with Google. Apple on the other hand...as expected are not accommodating to anyone operating outside of the Apple garden. They don't even do DMARC reports, and just point you at their policy page with no indication of why they reject some mail to icloud addresses but not others. I will say I have received specific feedback from a human at Apple after submitting an email and waiting about a month for a response. But it was shocking in how braindead and years-out-of-date their reason was for blocking some (not all!) emails from our domain.
Actually the absolute worst are the rinky dink "free email" hosting that is bundled with some cheap web hosting services, where they use the UCEPROTECT block lists. UCEPROTECT is basically a protection racket where they expect you to pay to be removed from their blocklists, and they are often the one and only blocklist a domain or IP will appear on (which indicates it is likely a false positive money grab)
How did this play out? Were the ads from an app from the store that you had installed? Or did they spam you over SMS because they associated your bluetooth info with an account you have with the store, or contact info they bought from a third party?
> Were the ads from an app from the store that you had installed?
This is my main concern over installing apps in general but specifically store apps. I've noticed that grocery stores are moving past existing loyalty cards and want you to use their apps for exclusively available digital coupons. The prices I'm seeing are very compelling and are on top of existing loyalty card discounts, and I could see lots of people using the app because of it. The assumed amount of abuse keeps me from lemminging my way through the store.
Kroger here has done that with their app. The loyalty card/phone number still works for many of the specials, but the "digital deals" thing by using the app and scanning a QR code on the price sticker gives BIGGER discounts. Its not the most convenient way to shop, but I am willing to save 15-20% more usually.
As someone explained it below in this thread, walk into a mall with Bluetooth turned on and phone starts chiming with multiple "... wants to send you a media/audio/image etc." Not just ads, some bad actors would try to infect the phone with malware. Luckily never happened to me, but I heard from my acquaintances.
Apple is another major player in the email receiving game for consumers. And they are awful, by far the worst of all the big providers. They do not send dmarc reports and they make it very difficult to tell why they accept some email and not others.
But the California law only applies if your business has more than $25m revenue or does a lot of selling of PII. See SEC. 9. Section 1798.140 in the page linked.
Alone or in combination, annually buys, receives for the business’s commercial purposes, sells, or shares for commercial purposes, alone or in combination, the personal information of 50,000 or more consumers, households, or devices.
So it only applies if you are buying or selling or sharing PII. Not if you just have 50,000 users/visitors to your website and keep it all private.
Ads again, I would guess. RSS feeds maybe don’t monetize as well because you can’t load a simple MP3 file up with trackers to verify that you are, e.g., not fast forwarding through the ads. Or make the ads unskippable. That sort of thing.
Actually the absolute worst are the rinky dink "free email" hosting that is bundled with some cheap web hosting services, where they use the UCEPROTECT block lists. UCEPROTECT is basically a protection racket where they expect you to pay to be removed from their blocklists, and they are often the one and only blocklist a domain or IP will appear on (which indicates it is likely a false positive money grab)
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