I disagree. Do you remember that the email that was sent to Chris from "Travis" was a forgery??
It shows that Chris received a crazy email from (who he thought was Travis) and that he did respond to it. At the time he responded to the email, he had no idea that the letters were forged.
Being the very close friend to Travis that he was, Chris responded with what appears to be a very long email back to his friend who he thought was in some sort of crisis.
What it also proves is that Jodi was already premeditating a possible defense for killing Travis.
All IMO, JMO, MOO
I think you may be getting the forged letters - that Jodi said Travis wrote - and the emails - that actually were emails between Chris and Travis - mixed up. Chris never said he didn't write the email or didn't receive the emails from Travis. I don't recall hearing that the emails were fake or forged at all, and I would imagine the Prosecution would have argued more than they did if they did indeed believed they were not sent.