Hello im new in building mail server but my Postfix/Dovecot solution was working well until i add an MailScanner/Spamassassin/ClamAV programs and i got stuck exactly my mails got stuck. Here i will try sketch my configuration MailScanner version - 4.79.11 Postfix version - 2.7.1 ClamAV version - 0.97 OS - Debian 6.0.2 (squeeze) Installation step was i add server to /etc/apt/sources.list because i didnt have MailScanner in my repository deb http://http.us.debian.org/debian stable main contrib aptitude update aptitude install mailscanner spamassassin clamav /etc/MailScanner/MailScanner.conf (edited values) Code: %org-name% = orgname %org-long-name% = longname %web-site% = www.site.tld Run As User = postfix Run As Group = postfix Incoming Queue Dir = /var/spool/postfix/hold Outgoing Queue Dir = /var/spool/postfix/incoming Incoming Work User = postfix Incoming Work Group = clamav Incoming Work Permissions = 0640 MTA = postfix Virus Scanners = clamd Clamd Socket = /var/run/clamav/clamd.ctl Use SpamAssassin = yes SpamAssassin User State Dir = /var/spool/MailScanner/spamassassin #include /etc/MailScanner/conf.d/* cd /etc/var/spool/MailScanner mkdir spamassassin chown postfix:clamav incoming quarantine spamassassin chmod 0755 -R incoming quarantine spamassassin in /etc/default/mailscanner i uncommented Code: run_mailscanner=1 in /etc/MailScanner/spam.assassin.prefs.conf i commented Code: #use_auto_whitelist 0 in /etc/postfix/main.cf i add Code: header_checks=regexp:/etc/postfix/header_checks in /etc/postfix/header_checks i add Code: /^Received:/ HOLD output from commands spamassassin -D spamassassin --lint -p /etc/MailScanner/spam.assassin.prefs.conf MailScanner -lint seems to be OK i was unable to get working ClamAV in MailScanner/incoming directory so i changed 'User root' in clamd.conf and its seems to be ok now but in future i will change clamav group to postfix maybe PROBLEM STARTED: if i had installed only postfix and dovecot it was working properly when i installed mailscanner,clamav,spamassassin problems started LOGS: /var/log/mail.err is empty /var/log/mail.log contains repeatly Code: Sep 29 02:55:46 mailsrv MailScanner[1080]: Connected to Processing Attempts Database Sep 29 02:55:46 mailsrv MailScanner[1080]: Found 0 messages in the Processing Attempts Database Sep 29 02:55:46 mailsrv MailScanner[1080]: Using locktype = flock Sep 29 02:55:48 mailsrv MailScanner[1081]: MailScanner E-Mail Virus Scanner version 4.79.11 starting... Sep 29 02:55:48 mailsrv MailScanner[1081]: Reading configuration file /etc/MailScanner/MailScanner.conf Sep 29 02:55:48 mailsrv MailScanner[1081]: Read 858 hostnames from the phishing whitelist Sep 29 02:55:48 mailsrv MailScanner[1081]: Read 5497 hostnames from the phishing blacklists Sep 29 02:55:49 mailsrv MailScanner[1081]: Using SpamAssassin results cache Sep 29 02:55:49 mailsrv MailScanner[1081]: Connected to SpamAssassin cache database Sep 29 02:55:49 mailsrv MailScanner[1081]: Enabling SpamAssassin auto-whitelist functionality... PROBLEM DESCRIPTION: my mails are stuck in /var/spool/postfix/hold where is the mistake ? please help. thank you