On Wed, 2008-08-20 at 17:06 -0400, Charles Marcus wrote:
The RFC for this apparently is 2060, but:
You should be looking at 3501 :)
2.3.3. Internal Date Message Attribute
It sounds like this INTERNALDATE changes... I'd like something that is from the message headers - ie, that doesn't change - so that sorting will *always* be what I want/expect, even if I move messages from one IMAP server to another...
INTERNALDATE is stored in message's mtime with maildir. It's preserved when COPYing a message to another mailbox. Whether it's preserved when a client copies it between different IMAP accounts depends on the client - APPEND command anyway supports INTERNALDATE parameter.
Evolution's "Received" field means the same as INTERNALDATE and I always use it to order my messages. Works fine.