PerlMol - Mailing Lists
Since the project is just starting and there's not a lot of traffic, there is only one mailing list: perlmol-user. If the traffic increases, the list may be split into a developers list, a users lists, and maybe an anouncements list.
Your email address will only be visible to the list manager (and probably SourceForge.net staff). It will also be visible to other subscribers if you send a message, of course. The message archive is available in the link given above, but all email addresses are removed, so don't worry about spambots harvesting your email.