[mstngl]

For my hosted E-Mail I've configured one inbox as "catch all unknown". This allows me to "generate" e-mail addresses on the fly without any configuration (at least receiving). Once one of the addresses / aliases was burnt for some reason I could make a separate postbox of it with all blocking rules and dead end for spam. This is a quite comfortable way for me, although the emails are not flagged in any way. They will come through in any case and I postponed the the work to any malicious event.

[ilyt]

I (with self hosted config) went a step further and made mail+<tagname>@domain.com ones go into a tag/<tagname> subdirectory