Thanks, Florian, but why should I go that way when there is a link to sign in with google, which I already have? I have gone ahead and done that anyway, since I am curious about MM3. This server is not yet fully operational. That's why currently only persona works. Are there people who have installed MM3 on FreeBSD? And integrated with Exim? There was a merge adding something about exim, so it should work. Search the the archives and mailman docs.