The first questions I would ask are how were all communications made? If the emails are supplemented by telephone calls or the like, and do not present the whole story, I would hesitate to post them. In general, posting actual emails may present some issues in and of themselves depending upon the expectations of the parties; you publicize them at your own risk. Remember also, that once these items are on the internet, you are no longer in control of what is done with them. Legal charges are only one aspect of how this can come back to bite the poster.
Second, what remedies have been sought? If the dealer (or gunsmith or whomever) failed to reach an accomodation, did you try other methods? Sometimes that may be indicated before posting on the web. Threads over the years mostly show that there are two sides, usually irate, to every story.
The best advice given here has been to try to settle matters privately before the situation spins out of control.
If the matter is already beyond resolution, I'd go with Postoak's recommendations keeping in mind that there will be incoming after you present your side.
