[dsr_]

The majority of spam [that gets past various RBLs] that I receive is completely ignorant of the dash addressing that I use. It's exactly the same as plus addressing but with a dash instead of a plus.

Pharma spam, 419 scams, password leak crypto blackmail... remember that these miscreants rely on low costs to achieve their profits, so any sort of filtering is too expensive. They don't even filter out abuse@, postmaster@, hostmaster@, or mailer-daemon@.