Dovecot 2.1.10 Client = Thunderbird. Local disks. mbox format.

Attempted to rename a folder, failed with:

CANNOT Renaming not supported across conflicting directory permissions

I don't understand why this should happen. o I was renaming within a directory - the attempt was to rename "Domain Names &- SSL Certificates" to "Domain Names". No directory was specified o The reason the directory has g=s is for dovecot - so that the 'mail' group (12) will stick to any files created. I was getting more understandable permission failures before I added it. Since 's' doesn't apply to files, I don't see why this should be viewed as a conflict. o If I chmod g-s the directory, the command succeeds. But then I'm back to file ownership problems...

drwxrws--- 4 4503 12 4096 Sep 22 06:17 F/N/ -rw-rw---- 1 4503 12 81530 Sep 22 06:17 F/N/Domain Names &- SSL Certificates

Sequence from TB's trace (crlfs for clarity):

1140[11ebcf00]: 121e8c00:imap.example.com:A:SendData: 66 rename "F/N/Domain Names &- SSL Certificates" "F/N/Domain Names" 1140[11ebcf00]: ReadNextLine [stream=12135a28 nb=80 needmore=0] 1140[11ebcf00]: 121e8c00:imap.example.com:A:CreateNewLineFromSocket: 66 NO [CANNOT] Renaming not supported across conflicting directory permissions 9592[c7d6840]: ReadNextLine [stream=ab687e8 nb=22 needmore=0]

Config:

# 2.1.10: /usr/local/etc/dovecot/dovecot.conf # OS: Linux 2.6.22.14-72.fc6 i686 Fedora Core release 6 (Zod) first_valid_gid = 4000 first_valid_uid = 4000 hostname = smtp.example.com login_greeting = Dovecot ready. Unauthorized access is prohibited. mail_location = mbox:~/mail:INBOX=/var/mail/%n mail_privileged_group = mail namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = separator = / } passdb { driver = pam } service imap-login { inet_listener imap { address = imap.v4.example.com imap.v6.example.com port = 143 } inet_listener imaps { address = imap.v4.example.com imap.v6.example.com port = 993 ssl = yes } } service pop3-login { inet_listener pop3 { address = pop.v4.example.com pop.v6.example.com port = 110 } inet_listener pop3s { address = pop.v4.example.com pop.v6.example.com port = 995 ssl = yes } } ssl_ca =

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