There has been no evidence yet that the emails were doctored. What there has been, as one journalist put it, was efforts to conflate "wikileaks emails" with "unsourced shit I saw on Twitter".
No evidence that they were doctored, but there are still plenty of complete fakes that were tweeted out by others, which were taken serious by way too many people including FOX news.
http://www.snopes.com/hillary-calls-voters-bucket-of-losers/