Hi, I changed the hostname and ran apt-get install postfix and sudo dpkg-reconfigure postfix but it didn't fix the problem. it seems that I need to remove the broken installation first!? how? Please advise. Thanks, Masood masood@masood-rocks:~$ sudo su [sudo] password for masood: root@masood-rocks:/home/masood# /etc/init.d/motion stop Stopping motion detection : motion . root@masood-rocks:/home/masood# apt-get reconfigure postfix E: Invalid operation reconfigure root@masood-rocks:/home/masood# sudo dpkg-reconfigure postfix /usr/sbin/dpkg-reconfigure: postfix is broken or not fully installed root@masood-rocks:/home/masood# sudo apt-get install postfix Reading package lists... Done Building dependency tree Reading state information... Done postfix is already the newest version. 0 upgraded, 0 newly installed, 0 to remove and 18 not upgraded. 31 not fully installed or removed. After this operation, 0B of additional disk space will be used. Setting up postfix (2.5.5-1) ... Postfix configuration was not changed. If you need to make changes, edit /etc/postfix/main.cf (and others) as needed. To view Postfix configuration values, see postconf(1). After modifying main.cf, be sure to run '/etc/init.d/postfix reload'. Running newaliases newaliases: warning: valid_hostname: invalid character 33(decimal): masood-ROCKS!> newaliases: fatal: file /etc/postfix/main.cf: parameter myhostname: bad parameter value: masood-ROCKS!> dpkg: error processing postfix (--configure): subprocess post-installation script returned error exit status 75 dpkg: dependency problems prevent configuration of courier-maildrop: courier-maildrop depends on postfix | mail-transport-agent; however: Package postfix is not configured yet. Package mail-transport-agent is not installed. Package postfix which provides mail-transport-agent is not configured yet. dpkg: error processing courier-maildrop (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of mlmmj: mlmmj depends on exim4 | mail-transport-agent; however: Package exim4 is not installed. Package mail-transport-agent is not installed. Package postfix which provides mail-transport-agent is not configured yet. dpkg: error processing mlmmj (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of dtc-common: dtc-common depends on courier-maildrop | cyrus-imapd-2.2; however: Package courier-maildrop is not configured yet. Package cyrus-imapd-2.2 is not installed. dtc-common dNo apport report written because the error message indicates its a followup error from a previous failure. No apport report written because the error message indicates its a followup error from a previous failure. No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already epends on mlmmj; however: Package mlmmj is not configured yet. dpkg: error processing dtc-common (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of courier-imap: courier-imap depends on postfix | mail-transport-agent; however: Package postfix is not configured yet. Package mail-transport-agent is not installed. Package postfix which provides mail-transport-agent is not configured yet. dpkg: error processing courier-imap (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of courier-imap-ssl: courier-imap-ssl depends on courier-imap (>= 1.3.7-3); however: Package courier-imap is not configured yet. dpkg: error processing courier-imap-ssl (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of courier-pop: courier-pop depends on postfix | mail-transport-agent; however: Package postfix is not configured yet. Package mail-transport-agent is not installed. Package postfix which provides mail-transport-agent is not configured yet. dpkg: error processing courier-pop (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of courier-pop-ssl: courier-pop-ssl depends on courier-pop; however: Package courier-pop is not configured yet. dpkg: error processing courier-pop-ssl (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of postfix-mysql: postfix-mysql depends on postfix (= 2.5.5-1); however: Package postfix is not configured yet. dpkg: error processing postfix-mysql (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of dtc-postfix-courier: dtc-postfix-courier depends on dtc-common; however: Package dtc-common is not configured yet. dtc-postfix-courier depends on courier-maildrop; however: Package courier-maildrop is not configured yet. dtc-postfix-courier depends on courier-imap; however: Package courier-imap is not configured yet. dtc-postfix-courier depends on courier-imap-ssl; however: Package courier-imap-ssl is not configured yet. dtc-postfix-courier depends on courier-pop; however: Package courier-pop is not configured yet. dtc-postfix-courier depends on courier-pop-ssl; however: Package courier-pop-ssl is not configured yet. dtc-postfix-courier depends on postfix (>= 2.0); however: Package postfix is not configured yet. dtc-postfix-courier depends on postfix-mysql; however: Package postfix-mysql is not configured yet. dtc-postfix-courier depends on postfix-tls (>= 2.0) | postfix (>= 2.2.10); however: Package postfix-tls is not installed. Package postfix is not configured yet. dpkg: error processing dtc-postfix-courier (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of bld-postfix: bld-postfix depends on postfix; however: Package postfix is not configured yet. dpkg: error processing bld-postfix (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of bsd-mailx: bsd-mailx depends on exim4 | mail-transport-agent; however: Package exim4 is not installed. Package mail-transport-agent is not installed. Package postfix which provides mail-transport-agent is not configured yet. dpkg: error processing bsd-mailx (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of postfix-pgsql: postfix-pgsql depends on postfix (= 2.5.5-1); however: Package postfix is not configured yet. dpkg: error processing postfix-pgsql (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of gforge-mta-postfix: gforge-mta-postfix depends on postfix; however: Package postfix is not configured yet. gforge-mta-postfix depends on postfix-pgsql; however: Package postfix-pgsqlNo apport report written because MaxReports is reached already No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already is not configured yet. dpkg: error processing gforge-mta-postfix (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of mailx: mailx depends on bsd-mailx; however: Package bsd-mailx is not configured yet. dpkg: error processing mailx (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of postfix-dev: postfix-dev depends on postfix (>= 2.5.5-0); however: Package postfix is not configured yet. postfix-dev depends on postfix (<< 2.5.5.0-0); however: Package postfix is not configured yet. dpkg: error processing postfix-dev (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of postfix-ldap: postfix-ldap depends on postfix (= 2.5.5-1); however: Package postfix is not configured yet. dpkg: error processing postfix-ldap (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of postfix-pcre: postfix-pcre depends on postfix (= 2.5.5-1); however: Package postfix is not configured yet. dpkg: error processing postfix-pcre (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of postfix-smtpguard: postfix-smtpguard depends on postfix; however: Package postfix is not configured yet. dpkg: error processing postfix-smtpguard (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of lsb-core: lsb-core depends on postfix | mail-transport-agent; however: Package postfix is not configured yet. Package mail-transport-agent is not installed. Package postfix which provides mail-transport-agent is not configured yet. lsb-core depends on mailx | mailutils; however: Package mailx is not configured yet. Package bsd-mailx which provides mailx is not configured yet. Package mailutils is not installed. dpkg: error processing lsb-core (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of lsb-graphics: lsb-graphics depends on lsb-core; however: Package lsb-core is not configured yet. dpkg: error processing lsb-graphics (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of lsb-cxx: lsb-cxx depends on lsb-core; however: Package lsb-core is not configured yet. dpkg: error processing lsb-cxx (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of lsb-desktop: lsb-desktop depends on lsb-graphics; however: Package lsb-graphics is not configured yet. dpkg: error processing lsb-desktop (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of lsb-printing: lsb-printing depends on lsb-core (>= 3.2); however: Package lsb-core is not configured yet. dpkg: error processing lsb-printing (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of lsb-multimedia: lsb-multimedia depends on lsb-core (>= 3.2); however: Package lsb-core is not configured yet. dpkg: error processing lsb-multimedia (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of lsb-languages: lsb-languages depends on lsb-core (>= 3.2); however: Package lsb-core is not configured yet. dpkg: error processing lsb-languages (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of lsb: lsb depends on lsb-core; however: Package lsb-core is not configured yet. lsb depends on lsb-graphics; however: Package lsb-graphics is not configured yet. lsb depends on lsb-cxx; however: Package lsb-cxx is not configured yet. lsb depends on lsb-desktop; however: Package lsb-desktop is not configured yet. lsb depends on lsb-printing; however: Package lsb-printing is not configured yet. lsbNo apport report written because MaxReports is reached already No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already No apport report written because MaxReports is reached already depends on lsb-multimedia; however: Package lsb-multimedia is not configured yet. lsb depends on lsb-languages; however: Package lsb-languages is not configured yet. dpkg: error processing lsb (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of realplay: realplay depends on lsb (>= 3.1); however: Package lsb is not configured yet. dpkg: error processing realplay (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of postfix-cdb: postfix-cdb depends on postfix (= 2.5.5-1); however: Package postfix is not configured yet. dpkg: error processing postfix-cdb (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of postfix-policyd-spf-perl: postfix-policyd-spf-perl depends on postfix; however: Package postfix is not configured yet. dpkg: error processing postfix-policyd-spf-perl (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of postfix-policyd-spf-python: postfix-policyd-spf-python depends on postfix (>= 2.1); however: Package postfix is not configured yet. dpkg: error processing postfix-policyd-spf-python (--configure): dependency problems - leaving unconfigured Processing triggers for libc6 ... ldconfig deferred processing now taking place Errors were encountered while processing: postfix courier-maildrop mlmmj dtc-common courier-imap courier-imap-ssl courier-pop courier-pop-ssl postfix-mysql dtc-postfix-courier bld-postfix bsd-mailx postfix-pgsql gforge-mta-postfix mailx postfix-dev postfix-ldap postfix-pcre postfix-smtpguard lsb-core lsb-graphics lsb-cxx lsb-desktop lsb-printing lsb-multimedia lsb-languages lsb realplay postfix-cdb postfix-policyd-spf-perl postfix-policyd-spf-python E: Sub-process /usr/bin/dpkg returned an error code (1) root@masood-rocks:/home/masood#