I believe the seforim hakedoshim state that when Moshiach comes he will identify the real Kohanim and Leviim but that he will not identify someone who is technically a mamzer but not known to be one.
Menu
I believe the seforim hakedoshim state that when Moshiach comes he will identify the real Kohanim and Leviim but that he will not identify someone who is technically a mamzer but not known to be one.