What's AOD and SQUAT

Hi,

I've had a problem with my mail server recently and now everything seems to work again. My Mail.app is syncronizing all IMAP sirectories and some are very big ones. While Mail.app is working I have this in the IMAP log of the mail server :

Dec 23 13:55:23 GhostServer imap[15274]: accepted connection
Dec 23 13:55:23 GhostServer imap[15274]: AOD: user opts: cleaning up user options structure
Dec 23 13:55:23 GhostServer imap[15274]: AOD: user opts: getting directory reference
Dec 23 13:55:23 GhostServer imap[15274]: AOD: user opts: getting search node reference
Dec 23 13:55:23 GhostServer imap[15274]: AOD: user opts: looking up user record: jeanluc_rosier
Dec 23 13:55:23 GhostServer imap[15274]: AOD: getting mail attribute for user: jeanluc_rosier
Dec 23 13:55:23 GhostServer imap[15274]: AOD: mail enabled
Dec 23 13:55:23 GhostServer imap[15274]: AOD: mbr check_servicemembership with access allservices
Dec 23 13:55:23 GhostServer imap[15274]: AOD: mail service ACL NOT enabled
Dec 23 13:55:23 GhostServer imap[15274]: login: Anthony's iMac G5 [192.168.0.1] jeanluc_rosier plaintext User logged in
Dec 23 13:55:23 GhostServer imap[15274]: quota set to 1048576 KB for mailbox user.jeanluc_rosier
Dec 23 13:55:23 GhostServer imap[15274]: seen_db: user jeanluc_rosier opened /var/imap/user/j/jeanluc_rosier.seen
Dec 23 13:55:23 GhostServer imap[15274]: open: user jeanluc_rosier opened Listes de distribution/REALbasic/- NUG bis
Dec 23 14:00:07 GhostServer imap[15274]: SQUAT failed to open index file
Dec 23 14:00:07 GhostServer imap[15274]: SQUAT failed


What's this AOD and SQUAT ?