This is for Dovecot 1.0.rc15 from Debian Backports on 3.1 Stable, x86; Filesystems are local reiserfs; IMAPs client is KMail 1.9.5

Non-default settings in dovecot.conf:

protocols = imaps ssl_cert_file = /etc/dovecot/mail.cert.pem ssl_key_file = /etc/dovecot/mail.key.pem mail_location = maildir:/var/mail/ambrosia.plus.com/%n mail_extra_groups = mail first_valid_uid = 1000 first_valid_gid = 1000 umask = 007 maildir_copy_with_hardlinks = yes

To reproduce:-

1. Using your IMAP client with two IMAP accounts, copy a message from a folder in one account, to a folder in the other account
2. See that the newly created message file is -rw-------

If a message is moved between folders on the _same_ account, however, the group permissions are preserved (ie not masked off). So it seems that the umask option is ineffective when the imap daemon creates a new maildir message file.

Thanks, Steve.

-- BOFH excuse #400:

We are Microsoft. What you are experiencing is not a problem; it is an undocumented feature.