[joosters]

I've been using the same system with my own domain for several years now, and unlike the OP, I've seen many unique emails get on to spammer lists. My blocklist of emails has got quite long!

As you say, using a password manager, or just picking a [e-mail] style of email, means remembering the email addresses is pretty easy. n.b. you may need to also set up your email client to let you send emails with a customisable address too.

Spammers who send stuff to [e-mail] can be mostly blocked because these tend to have a messy jumble of text and numbers - I use a simple regex to throw away these kind of spams. I use procmail to do the blocking, but I'm sure there are many other tools that would work just as well.