I do the same but use initials and random chars so hackers or employees can’t assume my email addresses for other sites/services.

e.g.: [email protected]

I also use @my.other.domain for websites, so my human contacts won't assume it is me if they see it.

Yeah we run this on our own Proton Mail whitelabel, and for a few customers who have us manage it, mostly for the filtering aspect, and the occasional customer who has the wrong/mis-spelled address in their system and won't change it.

I love doing that, when someone asks me for an email address, it’s always [email protected] - always gets strange looks!

Edit: even more fun with catch all domains then it’s [email protected]

is each address truly unique or are you doing something like [email protected], [email protected], etc.

It's a separate address that can have its own mailbox if need be, but unless you want to keep meticulous records on the go, and refer to them constantly, some sort of pattern is required.

I always see people claiming they use this strategy, but I never ever ever see people blaming services saying "this and this company sold my data to spammers". Where are the name-and-shame people? Have you ever caught anybody doing anything?

It's hard to distinguish between leaking and selling, but I think leaking is much more common. Dropbox famously leaked a lot of emails, including mine - I was never a paying customer and that put me off becoming one or using them. Two local PC parts companies leaked or sold my email. I confronted one about it and they claimed they hadn't had a data breach, so either they sold it, or they were too incompetent to know they'd been hacked, or they lied - I suspect incompetence but whatever happened they lost my business. A couple more incidents long ago too.

Real estate agents can be pretty aggressive with emailing, but IME respect unsubscribes and don't seem to share/leak emails. I kind of wish I'd used an address per agent instead of per company to see what was happening better.

Yes, I was one time suddebly getting whine ads on an E-Mail for a service I signed up. I contacted the service (rather unfriendly) and they apologized and the unwanted E-Mails stopped.