Q: Please educate me ... on how the Messiah will be determined to be the "REAL" Messiah ... and not just an "imposter?" How will the Jewish people know, that in fact, it is He? When is it expected that the Messiah arrive?
A: It's actually extremely simple and doesn't require any arguments, proofs or other acrobatics. The Bible very clearly describes what the Messiah will accomplish - rebuilding the Holy Temple, bringing the Jewish people back to their homeland and their covenant with God, leading the entire human race to monotheism and establishing a societal order founded on justice and righteousness. Whoever succeeds in accomplishing it is the Messiah, anyone who fails is not.