[Dovecot] trouble accessing mbox folders with simultaneous logins

2 m@le / Jonathan Salomon joni at 2male.com
Mon Oct 4 16:31:45 EEST 2004

Hi all!


I have setup dovecot (RPM) on a Fedora Core 2 machine using LDAP for
authentication. It all seems to work pretty well, except for
simultaneous logins. I am using mbox files to store the mail as follows
(from /etc/dovecot.conf):


default_mail_env = mbox:~/.mail/:INBOX=/var/mail/%u:INDEX=MEMORY


So the INBOX file is stored in /var/mail, other mailfolders are stored
in the users home directory in the .mail folder. Because the /home
directory of this machine is mounted from fileserver through NFS, I have
set the INDEX=MEMORY options (see http://www.dovecot.org/doc/nfs.txt).


As said before I am getting some problems when using simultaneous logins
for the same mail account (for instance when multiple users that work on
a specific project want to share a mail account containing all the mail
about the project in addition to their private account). The client used
is Microsoft Outlook and besides some outlook specific problems, it also
gives these errors (translated from Dutch) when many users are
simultaneously logged in to the same account:


'Your server reported that a UID does not comply with the IMAP standard,
which signifies an error on the server.'

'The UID of a message is unexpectedly deleted. This signifies an error
on the server.'


I am not sure where to look... I assume a problem with the index files?
Does NFS cause the problem? Will this be fixed if I switch to maildirs?

I would be grateful for any tips on the subject!




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