The problem with the emails is their source.
That's what Clinton and the DNC would like you to believe anyway. The problem isn't the source, the problem is the content. That and the fact that their systems were exposed at all.
But yeah, that's going to be the line, shoot the messenger. Blame Wikileaks, blame Russians, whatever it takes to distract from the actual content, the messages which show that the DNC was undermining the Sanders campaign as soon as they saw it as a potential threat to them pushing through the nominee they wanted. They show that the DNC engaged in a conspiracy to undermine the democratic process by not remaining neutral, by making sure that the person that they personally wanted to get nominated actually did get nominated, regardless of what other people wanted. They purposefully slanted the field in favor of their candidate. They violated their charter and are possibly liable for damages (join the lawsuit if you donated to Sanders). Past DNC chairs have also come out to say that this was completely unacceptable and should have been dealt with immediately, which of course was out of the question here since Wasserman-Schultz doesn't even try to pretend that she is anything but a Clinton surrogate.
That's great, but we must ask: what editing has been done here?
Well, apparently so much editing has taken place that no one at the DNC is alleging that there was any editing, and that the Clinton campaign and Obama both put pressure on Wasserman-Schultz to resign, which she finally did. Sounds like a bunch of fake emails, right?
This is a bunch of a bullshit spin, more of the same from the DNC and their loyalists. All of the attempts to deflect the story towards Russia, or Wikileaks, or whatever, basically amounts to "We would like to issue an apology: we apologize for getting caught." The DNC does not want to address the content of the emails, like you said, they would rather try to deflect the discussion and attack the messenger and go one acting like Hillary is the future of this country.
The line that we're going to hear repeated over and over during the convention in Philadelphia is that everyone needs to band together in order to defeat Trump. The problem with that narrative is that the DNC pushed through a nomination for a candidate who has serious problems with her ability to beat Trump, and they pushed out the candidate who consistently beat Trump in polls. If it was true that what they really want is to beat Trump then they should have nominated the better-performing candidate, not start themselves out with a handicap. Their goal is not and never has been to just beat Trump, their goal is to elect Clinton. They don't want the best candidate, they want Clinton.