Asking about the status of paper you refereed?
My experience has been that a review acknowledgement should come immediately---usually via an automated system, but quite rapidly even when there isn't one.  This is sensible: otherwise, how do you know that your review was actually received?  You should feel free to query the editor on this matter.

Your assessment of the paper sounds a bit unconventional, but essentially boils down to a recommendation for major revision.  It's possible you haven't heard back because the editor doesn't have all the reviews in, and some journals never actually tell you what the final result is.

Do check, however, that the journal is really a reasonable that you want to be associated with... review by informal email with a non-communicative editor would be a very bad sign in my field...