Lots of mail on Hold

[Carlos Raúl Laguna]

Hi aim using mailscanner 4.84.5-4 on ubuntu 12.04.2 an after some check
MailScanner --lint give no error back, however when i run in debug mode i
get this

LibClamAV Error: cli_scanhtml: Can't create temporary directory
/var/spool/MailScanner/incoming/SpamAssassin-Temp/fileZu9PiO/clamav-dfeb188c6d93ac33695b6db46175629e
LibClamAV Error: cli_scanhtml: Can't create temporary directory
/var/spool/MailScanner/incoming/SpamAssassin-Temp/fileZu9PiO/clamav-0973cd1b961c3f9d0c42a72a271a3579

plugin: eval failed: bayes: (in learn) locker: safe_lock: cannot create
lockfile /var/lib/MailScanner/bayes.mutex: Permission denied
plugin: eval failed: bayes: (in learn) locker: safe_lock: cannot create
lockfile /var/lib/MailScanner/bayes.mutex: Permission denied

It looks like permission issue but no enteraly shure about that had change
the user from where runnig clamav without any good outcome

grep -i postfix MailScanner.conf | grep -v ^#
Run As User = postfix
Run As Group = postfix
Incoming Queue Dir = /var/spool/postfix/hold
Outgoing Queue Dir = /var/spool/postfix/incoming
MTA = postfix

Any help here would be really appreciated. Thanks for your time.
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