stat writer error

[Jeff Abrahamson]

On postfix/pipe lines in my log, I see this error:

    Error: net_connect_unix(/var/run/dovecot/stats-writer) failed:
Permission ))

even though I also set

    [T] jeff at nantes-m1:postfix $ ll /var/run/dovecot/*stat*
    srw------- 1 root    root    0 Feb  4 14:55 /var/run/dovecot/old-stats
    prw------- 1 root    root    0 Feb  4 14:55
/var/run/dovecot/old-stats-mail
    prw------- 1 root    root    0 Feb  4 14:55
/var/run/dovecot/old-stats-user
    srw-rw---- 1 dovecot dovecot 0 Feb  4 14:55
/var/run/dovecot/stats-reader
    srw-rw---- 1 dovecot dovecot 0 Feb  4 14:55
/var/run/dovecot/stats-writer
    [T] jeff at nantes-m1:postfix $

I've not found documentation on what should be happening there or what
the right config is, though I did find some suggestions that 0660 and
dovecot:dovecot is right.  (I've also not understood why I care,
except I don't like to see regular errors in my logs if I can avoid
it.)

Any pointers?

Thanks.

-- 
Jeff Abrahamson
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http://p27.eu/jeff/
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