dovecot - Feb 2010 - deliver problem ( Error: file_dotlock_create )

Hello all ( Postfix and Dovecot )

Trying to use deliver as mailbox_command with Postfix I get this
error each time an email is arriving

deliver(xxxxxxxx): Error: file_dotlock_create(/var/mail/xxxxxxxx) 
failed: Permission denied (euid=3003(xxxxxxxx) egid=3010(smig) missing 
+w perm: /var/mail) (set mail_privileged_group=mail)

Doea this means I have to chmod 777 the /var/mail directory ?

Thanks a lot

On Fri, 2010-02-12 at 17:05 +0100, Frank Bonnet wrote:
> deliver(xxxxxxxx): Error: file_dotlock_create(/var/mail/xxxxxxxx) 
> failed: Permission denied (euid=3003(xxxxxxxx) egid=3010(smig) missing 
> +w perm: /var/mail) (set mail_privileged_group=mail)
> 
> Doea this means I have to chmod 777 the /var/mail directory ?
See http://wiki.dovecot.org/MailLocation/Mbox#Locking

And especially:

NOTE: With deliver the mail_privileged_group setting unfortunately
doesn't work, so you'll have to use the sticky bit or disable dotlocking
completely. 

With v2.0 LMTP server makes this easier.

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