Status (by robm at Mon Mar 23 04:23 UTC)
We just rolled out some updates to our IMAP server, and it seems to be causing some delivered messages to have empty subject/from/time details in the web interface. We’re investigating this.
Update (by robm at Mon Mar 23 04:38 UTC)
The problem that was causign the blank message subject/from/date details should be fixed now. You might need to logout and login from your web session to get the fixed details.