I recently imported a number of messages that were dated from Jan 1 - Mar 15, 2007 that were in my Thunderbird inbox. After they arrived in the Import folder of Mail, I moved them to my main inbox in Mail. All transferred without any problem, and they are now arranged in the proper ascending date order I have in the inbox. The Mail inbox had messages dating from Mar 15 - Dec 31 with numbers of 1-950, so all the new imported messages are numbered above 950, even though the were created before Mar 15. Is there any way to renumber all the messages so they correspond to their date/time stamp? (Jan 1 = 1, Dec 31 = xxx) If I created another inbox locally "On My Mac", then moved all the main inbox messages to it, and then moved all of them back to the main inbox, would that do what I want? Thanks . . .