To anyone who gets private messages -- the system is set up to send you email with the content of any private messages sent to you.
If you aren't
getting email accompanying each and every private message you receive, then your email address in your profile is wrong.
All the mails for those people with invalid email addresses get bounced to me. That certainly isn't what the person sending you a message intended, and probably isn't what you want either.
Since there is seldom anything juicy in these messages, please fix your profiles, if you aren't getting emails with every private message.
Or start talking about something more interesting!