User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; de; rv:1.9.0.10) Gecko/2009042316 Firefox/3.0.10 Build Identifier: As the "sort by order received" option does not work quite well when you move messages between folders, I would very much like to see the option "sort by server timestamp". How could this be done? Almost every e-mail has received headers with timestamps in it. My mailserver adds a last received line with its timestamp. Ane one could use that for sorting. Advantages: - If somebody with a wrong system time writes me an e-mail today, I see it between other e-mails I receive today. (That would not be the case if sorting by date.) - If I move messages between folders, the order would still be intact. (That would not be the case if sorting by received order.) My pseudo-code: for all received headers if it contains a timestamp use that break if no timestamp found use fetch timestamp (in "From - " header) if no timestamp found use Date header Reproducible: Always

AFAIK, "Received column"(value is obtained from Received: header) is already implemented by bug 166254 in next Tb 3(still Beta version currently), although it's still doesn't work for IMAP folder(bug 402594). And, at least 8 bugs were DUPed to bug 166254. Is the new "Received column" not satisfy your requirement? FYI. AFAIK, experimental patch for bug 166254(similar to your proposal) was landed on Tb 2. So you can enjoy "Value obtained from Received: header in Date column" with Tb 2, by setting hidden preference. However, it'll produce problem of bug 341548. And, you have to execute "rebuild index" manually for all local mail folders after upgrade to Tb 3.

Yes, after skimming through the many comments of bug 166254, it seems that they finally agreed on concept that is quite similar to my proposal. Although it is not 100% identical, I guess the implementation of bug 166254 would satisfy my requirement, therefore I will tag my proposal as a duplicate.