Karan found this and you can read about all of it in his blog. But I checked and he is right! Gmail does not show me the time of the “origin” of the email only when gmail got it. So taking Karan’s scenario:
- Retrieve from external pop3 mailbox
- 250 new messages
- Import 250 Messages
- look at inbox, and you have 250 messages received at the same time (1 min ago)
- Oh wow! this is just what I need.
This begs the question, is this by design? If so, would it be to thwart the spammers? Personally I would like to see both when was the mail sent, and when did I get it.