I've searched here, the wiki, and the documentation but I have yet to find an answer to my question.

That question is, when using the Migration Wizard for Exchange all emails are converted to plaintext format. If this is the proper behavior for the Wizard can it be changed?

If not then I need to know if there another way that I can migrate HTML email from exchange to Zimbra, whether its using the PST Import wizard, or imapsync.

Thanks in advance.