Working with emails

An interesting question popped up on one of the lists yesterday, and I just sort of watched it to see what happened, and how others would respond. The original question had to do with parsing emails, from one format to another. Like many examiners, I've had to deal with this sort of thing myself, looking at data exfiltration or misuse/abuse of corporate assets by an employee. Many times this sort of question really comes down to, how can you parse email messages from one format to another, in order to perform searches of either the email text or of attachments?

The results of the posts to the list are encapsulated below in a list of email conversion tools.

Email Conversion Tools
Emailchemy
Vound Software Intella
Aid4Mail
AvTech - Beware...Perl ahead!
Email Conversion Tools

Another respondent suggested Google searches for "eml to mbox bulk" and "msg to mbox bulk"

So...what do you do? What tools do you use?

Addendum: An alert reader mentioned a free (as in "beer") tool called Mail Cure for Outlook Express (described here) that reportedly can recovery emails from damaged or deleted dbx files. Very cool!