Thanks everyone, finally got some time to take another look at this. * Chris G <c...@isbd.net> [110312 13:30]: > On Fri, Mar 11, 2011 at 02:17:49PM -0600, Derek Martin wrote: > > On Fri, Mar 11, 2011 at 05:50:34PM +0000, Chris G wrote: > > > On Tue, Mar 08, 2011 at 02:40:06PM -0800, John Magolske wrote: > > > > I'd like the original (source) mailboxes to retain their N's, I'm not > > > > concerned about copying over this to the backup copy. > > > > > > > That's because rsync is changing the *access* time of the 'source' > > > mailboxes isn't it, I'm not sure you can stop it doing this. > > > > YOU ABSOLUTELY CAN, by using rsync -t as I've said several times now. > > [...] > > > I just did some tests too, rsync doesn't change the access time even > without using -t as far as I can tell.
Evidentally rsync is changing the access time of my mbox file. Here, I last browsed the mailbox "somelist" with Mutt at 13:38, fetched new mail to it at 14:18, and ran rsync around 14:23 : % ls -lu Mail/List/somelist -rw------- [...] 2011-03-12 13:38 Mail/List/somelist (fetch new mail...) % ls -lc Mail/List/somelist -rw------- [...] 2011-03-12 14:18 Mail/List/somelist % ls -lu Mail/List/somelist -rw------- [...] 2011-03-12 13:38 Mail/List/somelist % rsync -avt --delete Mail/ /otherharddrive/Mail % ls -lu Mail/List/somelist -rw------- [...] 2011-03-12 14:23 Mail/List/somelist FWIW I have the "relatime" option set in /etc/fstab ...and I didn't try the chattr commands (not sure if that would help, but good to know about this utility). However, I did find a solution by searching the archives of this list a bit more. Adding this to my muttrc: set check_mbox_size=yes Solves the problem entirely. Regards, John -- John Magolske http://B79.net/contact