On 6 Apr 2011, at 7:29, Mason Mark wrote: > Viewing the message source, I see that only a minimal set of headers > is actually present, and there are no "Received:" headers at all. > > Am I correct in thinking that, if no "Received:" headers are actually > present, MM uses the "Date:" field as the date received (for the > purpose of sorting).
That is correct. Thanks for noticing :-) > And probably Mail.app decides to use the first date it saw the > message? Yes, they most likely use ?now? as a fallback which is understandable when there are no Received headers. But I had the same problem as you and decided I preferred the Date header as a fallback. -- Benny