Paul B. Gallagher wrote:
Arne wrote:

Mark Hansen wrote:
On 1/11/2010 3:41 AM, Arne wrote:
I would like to know what the difference is between "Sort by: Date"
and "Sort by: Received"?

Do you mean "Sort by: Order Received"? That is the date/time the message
showed up on your doorstep, regardless of the date shown in the Date
header of the message. These can be different.

No, I don't mean "Sort by: Order Received". As I wrote, I can see what
happen with that sort order. But I can't see what happen with the
"plain" Received sorting that is different from sorting by Date.

OK, here's a theory:

If you look at a message header, you'll see that it contains Date: and
Received: fields. The Date: field is the date attached by the sending
computer, which may or may not be accurate. The Received: fields are
attached by the various servers that handle the message en route.

So if you sort by Date:, you're sorting by when the sender's computer
thought it sent it, and if you sort by Received:, you're sorting by when
one of the mail servers thought it got it. Could be as much as several
days apart.


Thanks, that makes sense. The date and time could be my computers then, when sorting by "Order Received? That option seems to be the only one that always put all posts and threads in a logical order, from my point of view. ;)

--
/Arne
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