Virtual_Mail

HOWTO Virtual Mail Hosting on CentOS 6.x - Postfix MySQL Dovecot PostfixAdmin Amavisd-new Spamassassin Clamav

History / Status

Introduction

First things first. If you are a novice at linux I recommend that you should get help with setting this up. This is an advanced email server configuration. This configuration will allow you to serve multiple domains on one server. This howto will allow you to setup a server that is one of four mail server types:

You will get the following features:

Books You May Find Helpful

The following books may be helpful for some people.

The Accidental Administrator: Linux Server Step-by-Step Configuration Guide 

Learning the bash Shell: Unix Shell Programming (In a Nutshell (O'Reilly)) 

Installing CentOS

Start with my HOWTO: CentOS 6.x base server. That howto will get CentOS installed and ready for this howto.

WARNING: Not following the base server howto will cause you grief. Due to 6.4+ changes things will break.

Installing The Software

We'll start with the yum installs. 

> yum install roundcubemail dovecot dovecot-mysql dovecot-pigeonhole cyrus-sasl-devel cyrus-sasl-sql subversion 

> yum install perl-MailTools perl-MIME-EncWords perl-MIME-Charset perl-Email-Valid perl-Test-Pod perl-TimeDate 

> yum install perl-Mail-Sender perl-Log-Log4perl imapsync offlineimap 

> yum install amavisd-new clamav clamd razor-agents perl-Convert-BinHex

Postfix.Admin doesn't have an rpm so we need to download it and put it where we want it.

> wget http://sourceforge.net/projects/postfixadmin/files/latest/download 

> tar -xzvf postfixadmin-2.3.5.tar.gz 

> mv postfixadmin-2.3.5 /usr/share/postfixadmin

Configuring The Server

Setup SSL Certificate

Now generate an SSL certificate for postfix and dovecot to have TLS support. Replace mail.example.com with your server hostname. 

> genkey --days 3650 mail.example.com

Setup the Virtual Mail User

Next we'll configure the mail store directory. We put it in the /home directory to make backups and other item easy. So type the following. 

> mkdir /home/vmail 

> chmod 770 /home/vmail 

> useradd -r -u 101 -g mail -d /home/vmail -s /sbin/nologin -c "Virtual mailbox" vmail 

> chown vmail:mail /home/vmail

Configuring Postfix Admin

Create the apache config file for postfixadmin and restart apache. 

/etc/httpd/conf.d/postfixadmin.conf

 alias /mailadmin /usr/share/postfixadmin <Directory "/usr/share/postfixadmin">   AllowOverride AuthConfig </Directory> 

> service httpd restart

Now we need to setup the mysql database for postfixadmin. We only need to create the database and user. The setup file will create the rest. 

> mysql -u root -p -e "CREATE DATABASE postfix;" 

> mysql -u root -p -e "CREATE USER postfix@localhost IDENTIFIED BY 'choose_a_password';" 

> mysql -u root -p -e "GRANT ALL PRIVILEGES ON postfix . * TO postfix@localhost;"

Now its time to setup the config file. Don't forget to set your password. Paste the following into the file.

> cd /usr/share/postfixadmin 

> nano -w config.local.php

 <?php /**   * Contains configuration options that override the default config file  */  /*****************************************************************  *  !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!   * You have to set $CONF['configured'] = true; before the  * application will run!  * Doing this implies you have changed this file as required.  * i.e. configuring database etc; specifying setup.php password etc.  */ $CONF['configured'] = true;  // In order to setup Postfixadmin, you MUST specify a hashed password here. // To create the hash, visit setup.php in a browser and type a password into the field, // on submission it will be echoed out to you as a hashed value. $CONF['setup_password'] = 'changeme'; $CONF['postfix_admin_url'] = '/mailadmin'; $CONF['database_type'] = 'mysql'; $CONF['database_host'] = 'localhost'; $CONF['database_user'] = 'postfix'; $CONF['database_password'] = 'changeme'; $CONF['database_name'] = 'postfix'; $CONF['admin_email'] = 'postmaster@change-this-to-your.domain.tld'; $CONF['encrypt'] = 'md5crypt'; $CONF['dovecotpw'] = "/usr/sbin/dovecotpw"; $CONF['min_password_length'] = 6; $CONF['page_size'] = '20'; $CONF['domain_path'] = 'YES'; $CONF['domain_in_mailbox'] = 'NO'; $CONF['aliases'] = '50'; $CONF['mailboxes'] = '50'; $CONF['maxquota'] = '100'; $CONF['quota'] = 'YES'; $CONF['quota_multiplier'] = '1024000'; $CONF['transport'] = 'YES'; $CONF['transport_options'] = array (     'virtual',  // for virtual accounts     'local',    // for system accounts     'relay'     // for backup mx ); $CONF['transport_default'] = 'virtual'; $CONF['vacation'] = 'YES'; $CONF['vacation_domain'] = 'autoreply.change-this-to-your.domain.tld'; $CONF['vacation_control'] ='YES'; $CONF['vacation_control_admin'] = 'YES'; $CONF['special_alias_control'] = 'YES'; $CONF['user_footer_link'] = "http://change-this-to-your.domain.tld/main"; $CONF['show_footer_text'] = 'YES'; $CONF['footer_text'] = 'Return to change-this-to-your.domain.tld'; $CONF['footer_link'] = 'http://change-this-to-your.domain.tld'; $CONF['create_mailbox_subdirs']=array('Drafts','Spam','Sent','Trash'); $CONF['create_mailbox_subdirs_host']='localhost'; $CONF['create_mailbox_subdirs_prefix']=''; $CONF['used_quotas'] = 'YES'; $CONF['new_quota_table'] = 'YES'; // $CONF['create_mailbox_subdirs_hostoptions']=array('notls'); $CONF['create_mailbox_subdirs_hostoptions']=array('novalidate-cert','norsh');  // // END OF CONFIG FILE // 

Next we need to run the setup.php script in a web browser. Enter the url in your browser. Ex. 

http://yourdomain.tld/mailadmin/setup.php

If everything shows OK then create the admin user using the form displayed. Follow the instructions for setting the setup password.

Log into the web interface and follow the directions. 

http://yourdomain.tld/mailadmin/

Configuring Postfix

Here we go with more config files. You'll have to be sure to change some settings to match your host. The config files will have sections commented out. Don't worry about it. These sections are for spam/virus/sympa configuration. Just copy and past to create the config files. What ever you see here replaces what already exists.

The main postfix config files. 

/etc/postfix/main.cf

 # postfix config file  # uncomment for debugging if needed #soft_bounce=yes  # postfix main mail_owner = postfix setgid_group = postdrop delay_warning_time = 4  # postfix paths html_directory = no command_directory = /usr/sbin daemon_directory = /usr/libexec/postfix queue_directory = /var/spool/postfix sendmail_path = /usr/sbin/sendmail.postfix newaliases_path = /usr/bin/newaliases.postfix mailq_path = /usr/bin/mailq.postfix manpage_directory = /usr/share/man  # network settings inet_interfaces = all mydomain = yourdomain.com myhostname = host.yourdomain.com mynetworks = $config_directory/mynetworks mydestination = $myhostname, localhost.$mydomain, localhost  relay_domains = proxy:mysql:/etc/postfix/mysql-relay_domains_maps.cf  # mail delivery recipient_delimiter = +   # mappings alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases transport_maps = hash:/etc/postfix/transport #local_recipient_maps =   # virtual setup virtual_alias_maps = proxy:mysql:/etc/postfix/mysql-virtual_alias_maps.cf,                      regexp:/etc/postfix/virtual_regexp virtual_mailbox_base = /home/vmail virtual_mailbox_domains = proxy:mysql:/etc/postfix/mysql-virtual_domains_maps.cf virtual_mailbox_maps = proxy:mysql:/etc/postfix/mysql-virtual_mailbox_maps.cf virtual_mailbox_limit_maps = proxy:mysql:/etc/postfix/mysql-virtual_mailbox_limit_maps.cf virtual_minimum_uid = 101 virtual_uid_maps = static:101 virtual_gid_maps = static:12 virtual_transport = dovecot dovecot_destination_recipient_limit = 1  # debugging debug_peer_level = 2 debugger_command =          PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin          xxgdb $daemon_directory/$process_name $process_id & sleep 5  # authentication smtpd_sasl_auth_enable = yes smtpd_sasl_security_options = noanonymous smtpd_sasl_local_domain = $myhostname broken_sasl_auth_clients = yes smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth  # tls config smtp_use_tls = yes smtpd_use_tls = yes  smtpd_tls_security_level = may smtpd_tls_loglevel = 1 smtpd_tls_received_header = yes smtpd_tls_session_cache_timeout = 3600s tls_random_source = dev:/dev/urandom smtp_tls_session_cache_database = btree:$data_directory/smtp_tls_session_cache # Change mail.example.com.* to your host name  smtpd_tls_key_file = /etc/pki/tls/private/mail.example.com.key smtpd_tls_cert_file = /etc/pki/tls/certs/mail.example.com.crt # smtpd_tls_CAfile = /etc/pki/tls/root.crt  # rules restrictions  smtpd_client_restrictions =  smtpd_helo_restrictions =  smtpd_sender_restrictions =  smtpd_recipient_restrictions = permit_sasl_authenticated,          permit_mynetworks,          reject_unauth_destination, reject_non_fqdn_sender,         reject_non_fqdn_recipient,          reject_unknown_recipient_domain # uncomment for realtime black list checks # ,reject_rbl_client zen.spamhaus.org # ,reject_rbl_client bl.spamcop.net # ,reject_rbl_client dnsbl.sorbs.net  smtpd_helo_required = yes unknown_local_recipient_reject_code = 550 disable_vrfy_command = yes smtpd_data_restrictions = reject_unauth_pipelining  # Other options # email size limit ~20Meg message_size_limit = 204800000 

/etc/postfix/master.cf

 # # Postfix master process configuration file.  For details on the format # of the file, see the Postfix master(5) manual page. # # ***** Unused items removed ***** # ========================================================================== # service type  private unpriv  chroot  wakeup  maxproc command + args #               (yes)   (yes)   (yes)   (never) (100) # ========================================================================== smtp      inet  n       -       n       -       -       smtpd #  -o content_filter=smtp-amavis:127.0.0.1:10024 #  -o receive_override_options=no_address_mappings pickup    fifo  n       -       n       60      1       pickup   -o content_filter=    -o receive_override_options=no_header_body_checks cleanup   unix  n       -       n       -       0       cleanup qmgr      fifo  n       -       n       300     1       qmgr #qmgr     fifo  n       -       n       300     1       oqmgr tlsmgr    unix  -       -       n       1000?   1       tlsmgr rewrite   unix  -       -       n       -       -       trivial-rewrite bounce    unix  -       -       n       -       0       bounce defer     unix  -       -       n       -       0       bounce trace     unix  -       -       n       -       0       bounce verify    unix  -       -       n       -       1       verify flush     unix  n       -       n       1000?   0       flush proxymap  unix  -       -       n       -       -       proxymap smtp      unix  -       -       n       -       -       smtp # When relaying mail as backup MX, disable fallback_relay to avoid MX loops relay     unix  -       -       n       -       -       smtp         -o fallback_relay= #       -o smtp_helo_timeout=5 -o smtp_connect_timeout=5 showq     unix  n       -       n       -       -       showq error     unix  -       -       n       -       -       error discard   unix  -       -       n       -       -       discard local     unix  -       n       n       -       -       local virtual   unix  -       n       n       -       -       virtual lmtp      unix  -       -       n       -       -       lmtp anvil     unix  -       -       n       -       1       anvil scache    unix  -       -       n       -       1       scache # # ==================================================================== # Interfaces to non-Postfix software. Be sure to examine the manual # pages of the non-Postfix software to find out what options it wants. # ==================================================================== maildrop  unix  -       n       n       -       -       pipe   flags=DRhu user=vmail argv=/usr/local/bin/maildrop -d ${recipient} uucp      unix  -       n       n       -       -       pipe   flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient) ifmail    unix  -       n       n       -       -       pipe   flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient) bsmtp     unix  -       n       n       -       -       pipe   flags=Fq. user=foo argv=/usr/local/sbin/bsmtp -f $sender $nexthop $recipient # # spam/virus section # smtp-amavis  unix  -    -       y       -       2       smtp   -o smtp_data_done_timeout=1200   -o disable_dns_lookups=yes   -o smtp_send_xforward_command=yes 127.0.0.1:10025 inet n  -       y       -       -       smtpd   -o content_filter=   -o smtpd_helo_restrictions=   -o smtpd_sender_restrictions=   -o smtpd_recipient_restrictions=permit_mynetworks,reject   -o mynetworks=127.0.0.0/8   -o smtpd_error_sleep_time=0   -o smtpd_soft_error_limit=1001   -o smtpd_hard_error_limit=1000   -o receive_override_options=no_header_body_checks   -o smtpd_bind_address=127.0.0.1   -o smtpd_helo_required=no   -o smtpd_client_restrictions=   -o smtpd_restriction_classes=   -o disable_vrfy_command=no   -o strict_rfc821_envelopes=yes # # Dovecot LDA dovecot   unix  -       n       n       -       -       pipe   flags=DRhu user=vmail:mail argv=/usr/libexec/dovecot/deliver -d ${recipient} # # Vacation mail vacation    unix  -       n       n       -       -       pipe   flags=Rq user=vacation argv=/var/spool/vacation/vacation.pl -f ${sender} -- ${recipient} 

/etc/postfix/mynetworks

 # This specifies the list of subnets that Postfix considers as # "trusted" SMTP clients that have more privileges than "strangers". # # In particular, "trusted" SMTP clients are allowed to relay mail # through Postfix. # # Be sure to add your public ip address block if needed. # 192.168.0.0/16 10.0.0.0/8 127.0.0.0/8 

The postfix / mysql config files. 

/etc/postfix/mysql-virtual_alias_maps.cf

 hosts = localhost user = postfix password = postfix dbname = postfix query = SELECT goto FROM alias WHERE address='%s' AND active = '1' 

/etc/postfix/mysql-virtual_domains_maps.cf

 hosts = localhost user = postfix password = postfix dbname = postfix query = SELECT domain FROM domain WHERE domain='%s' AND backupmx = '0' AND active = '1' 

/etc/postfix/mysql-relay_domains_maps.cf

 hosts = localhost user = postfix password = postfix dbname = postfix query = SELECT domain FROM domain WHERE domain='%s' and backupmx = '1' 

/etc/postfix/mysql-virtual_mailbox_maps.cf

 hosts = localhost user = postfix password = postfix dbname = postfix query = SELECT maildir FROM mailbox WHERE username='%s' AND active = '1' 

/etc/postfix/mysql-virtual_mailbox_limit_maps.cf

 hosts = localhost user = postfix password = postfix dbname = postfix query = SELECT quota FROM mailbox WHERE username='%s' AND active = '1' 

We need to touch a file. So type the follwoing. 

> touch /etc/postfix/virtual_regexp

Configure Vacation Email Functionallity

Lets finish the postfix configuration with vacation mail. Don't forget to fill in your domain name where needed. Type the following: 

> useradd -r -d /var/spool/vacation -s /sbin/nologin -c "Virtual vacation" vacation 

> mkdir /var/spool/vacation 

> chmod 770 /var/spool/vacation 

> cp /usr/share/postfixadmin/VIRTUAL_VACATION/vacation.pl /var/spool/vacation/ 

> echo "autoreply.yourdomain.com vacation:" > /etc/postfix/transport 

> postmap /etc/postfix/transport 

> chown -R vacation:vacation /var/spool/vacation 

> echo "127.0.0.1 autoreply.yourdomain.com" >> /etc/hosts 

> mkdir /etc/postfixadmin

Create /etc/postfixadmin/vacation.conf with the following:

 # ========== begin configuration ========== $db_type = 'mysql'; $db_username = 'user'; $db_password = 'password';     $db_name     = 'postfix';     $vacation_domain = 'autoreply.example.org';   

Configuring Dovecot

Now for the dovecot config file. Dovecot now uses multiple config files to break things up. We're going to only use a couple config files. So cut and paste the following files. 

> mv /etc/dovecot/dovecot.conf /etc/dovecot/dovecot.conf.save 

> nano -w /etc/dovecot/dovecot.conf

 ## ## Dovecot config file ##  protocols = imap pop3 lmtp sieve auth_mechanisms = plain login passdb {   driver = sql   args = /etc/dovecot/dovecot-mysql.conf } userdb {   driver = prefetch } userdb {   driver = sql   args = /etc/dovecot/dovecot-mysql.conf } mail_location = maildir:/home/vmail/%d/%n first_valid_uid = 101 #last_valid_uid = 0 first_valid_gid = 12 #last_valid_gid = 0 #mail_plugins = mailbox_idle_check_interval = 30 secs maildir_copy_with_hardlinks = yes service imap-login {   inet_listener imap {     port = 143   }   inet_listener imaps {     port = 993     ssl = yes   } } service pop3-login {   inet_listener pop3 {     port = 110   }   inet_listener pop3s {     port = 995     ssl = yes   } } service lmtp {   unix_listener lmtp {     #mode = 0666   } } service imap {   vsz_limit = 256M } service pop3 { } service auth {   unix_listener auth-userdb {     mode = 0666     user = vmail     group = mail   }    # Postfix smtp-auth   unix_listener /var/spool/postfix/private/auth {     mode = 0666     user = postfix     group = postfix   } } service auth-worker { } service dict {   unix_listener dict {     mode = 0666     user = vmail     group = mail   } } service managesieve-login {   inet_listener sieve {     port = 4190   }   service_count = 1   process_min_avail = 0   vsz_limit = 64M } service managesieve { } ssl = yes ssl_cert = </etc/pki/tls/certs/your-server.your-domain.tld.crt  ssl_key = </etc/pki/tls/private/your-server.your-domain.tld.key ssl_verify_client_cert = no #ssl_ca = lda_mailbox_autocreate = yes          lda_mailbox_autosubscribe = yes protocol lda {   mail_plugins = quota sieve   postmaster_address = postmaster@your-domain.tld }   protocol imap {   mail_plugins = quota imap_quota trash   imap_client_workarounds = delay-newmail } lmtp_save_to_detail_mailbox = yes protocol lmtp {   mail_plugins = sieve } protocol pop3 {   mail_plugins = quota   pop3_client_workarounds = outlook-no-nuls oe-ns-eoh } protocol sieve {   managesieve_max_line_length = 65536   managesieve_implementation_string = Dovecot Pigeonhole   managesieve_max_compile_errors = 5 } dict {   quotadict = mysql:/etc/dovecot/dovecot-dict-quota.conf } plugin {   quota = dict:user::proxy::quotadict   acl = vfile:/etc/dovecot/acls   trash = /etc/dovecot/trash.conf   sieve_global_path = /home/sieve/globalfilter.sieve   sieve = ~/dovecot.sieve   sieve_dir = ~/sieve   sieve_global_dir = /home/sieve/   #sieve_extensions = +notify +imapflags   sieve_max_script_size = 1M   #sieve_max_actions = 32   #sieve_max_redirects = 4 }  

Now for trash.conf 

> nano -w /etc/dovecot/trash.conf

 1 Spam # Uncomment if you want trash as well # 2 Trash 

Next we configure Dovecot to access mysql. Create the following file. 

NOTE: password_query and user_query were formatted to fit on the webpage. Each one should only be one line in the file. 

/etc/dovecot/dovecot-mysql.conf

 driver = mysql connect = host=localhost dbname=postfix user=postfix password=yourpassword default_pass_scheme = MD5-CRYPT  # following should all be on one line. password_query = SELECT username as user, password, concat('/home/vmail/', maildir) as userdb_home,  concat('maildir:/home/vmail/', maildir) as userdb_mail, 101 as userdb_uid, 12 as userdb_gid FROM mailbox  WHERE username = '%u' AND active = '1'  # following should all be on one line user_query = SELECT concat('/home/vmail/', maildir) as home, concat('maildir:/home/vmail/', maildir) as mail,  101 AS uid, 12 AS gid, CONCAT('*:messages=10000:bytes=', quota) as quota_rule FROM mailbox WHERE  username = '%u' AND active = '1' 

and /etc/dovecot/dovecot-dict-quota.conf

 connect = host=localhost dbname=postfix user=postfix password=password map {   pattern = priv/quota/storage   table = quota2   username_field = username   value_field = bytes } map {   pattern = priv/quota/messages   table = quota2   username_field = username   value_field = messages } 

Finally set Dovecot to boot at startup.

Now Create the sieve filter for SPAM filtering. 

> mkdir /home/sieve 

> nano -w /home/sieve/globalfilter.sieve 

> chown -R vmail:mail /home/sieve

 require "fileinto";   if exists "X-Spam-Flag" {           if header :contains "X-Spam-Flag" "NO" {           } else {           fileinto "Spam";                 stop;   }   }   if header :contains "subject" ["***SPAM***"] {     fileinto "Spam";           stop;   } 

Configuring Roundcube mail

Edit the roundcube apache config file to look like the following: 

>nano -w /etc/httpd/conf.d/roundcubemail.conf

 # # Round Cube Webmail is a browser-based multilingual IMAP client #  # Force https here instead of in Round Cube  RewriteEngine On  # This checks to make sure the connection is not already HTTPS RewriteCond %{HTTPS} !=on   # These rules will redirect all users who are using any part of /secure/ to the same location but using HTTPS. # i.e.  http://www.example.com/secure/ to https://www.example.com/secure/ RewriteRule ^/?roundcubemail/(.*) https://%{SERVER_NAME}/roundcubemail/$1 [R,L] RewriteRule ^/?webmail/(.*) https://%{SERVER_NAME}/webmail/$1 [R,L]  Alias /roundcubemail /usr/share/roundcubemail Alias /webmail /usr/share/roundcubemail  <Directory /usr/share/roundcubemail/>         Order Deny,Allow         Deny from all         Allow from all         php_value suhosin.session.encrypt Off  </Directory>  

Create the database for roundcube. 

> mysql -u root -p -e "CREATE DATABASE roundcubemail;" 

> mysql -u root -p -e "GRANT ALL PRIVILEGES ON roundcubemail.* TO roundcube@localhost IDENTIFIED BY 'password';"

Create the tables. 

> mysql -u root -p roundcubemail < /usr/share/doc/roundcubemail-0.5.4/SQL/mysql.initial.sql

Edit /etc/roundcubemail/db.inc.php and find the line:

 $rcmail_config['db_dsnw'] = 'mysql://roundcube:pass@localhost/roundcubemail'; 

Change 'pass' to your passowrd.

Edit /etc/roundcubemail/main.inc.php and find the lines and make the changes below:

find:

change to:

 $rcmail_config['default_host'] = ''; 

 $rcmail_config['default_host'] = 'localhost'; 

find:

change to:

 $rcmail_config['smtp_server'] = ''; 

 $rcmail_config['smtp_server'] = 'localhost'; 

find:

change to:

 $rcmail_config['force_https'] = false; 

 $rcmail_config['force_https'] = true; 

find:

change to:

 $rcmail_config['plugins'] = array(); 

 $rcmail_config['plugins'] = array('managesieve'); 

find:

change to:

 $rcmail_config['quota_zero_as_unlimited'] = false; 

 $rcmail_config['quota_zero_as_unlimited'] = true; 

Now lets configure the manage sieve plugin. 

> cd /usr/share/roundcubemail/plugins/managesieve/ 

> cp config.inc.php.dist config.inc.php

Edit config.inc.php and change the following:

to:

 $rcmail_config['managesieve_port'] = 2000; 

 $rcmail_config['managesieve_port'] = 4190; 

Restart apache. 

> service httpd restart

Configuring the Little Things That Drive You MAD

Be sure your /etc/hosts looks similar to the following.

 # Do not remove the following line, or various programs # that require network functionality will fail. 127.0.0.1       localhost 192.168.11.21   host.domain.com 

Preparing and Testing the Postoffice

First things first. Reboot the system. If everything went well we all should be at the same point.

No errors? Lets keep going.

Setup a test domain and account. Setup your favorit mail client and send some test emails.

Setting up Spam and Virus Filtering (Optional)

Lets cover installing and configuring spam and virus filtering. Optional? Huh? Some people use a 3rd party or use a seperate server for filtering.

Here's the clamav config file. Replace /etc/clamd.conf with the following:

 ## ## Cconfig file for the Clam AV daemon ## Please read the clamd.conf(5) manual before editing this file. ##  # Logfile LogFile /var/log/clamav/clamd.log LogFileMaxSize 20M LogTime yes LogSyslog yes  # Pid PidFile /var/run/clamav/clamd.pid  # Paths TemporaryDirectory /var/tmp DatabaseDirectory /var/clamav LocalSocket /var/run/clamav/clamd  # Sets the group ownership on the unix socket. # Default: disabled (the primary group of the user running clamd) #LocalSocketGroup virusgroup  # Misc FixStaleSocket yes TCPSocket 3310 TCPAddr 127.0.0.1 MaxConnectionQueueLength 50 MaxThreads 50 ReadTimeout 240 User clamav AllowSupplementaryGroups yes  # Exe ScanPE yes ScanELF yes DetectBrokenExecutables yes  # Docs ScanOLE2 yes ScanPDF yes  # Mail ScanMail yes PhishingSignatures yes PhishingScanURLs yes  # Data Loss Prevention (DLP)  # Enable the DLP module # Default: No #StructuredDataDetection yes  # This option sets the lowest number of Credit Card numbers found in a file # to generate a detect. # Default: 3 #StructuredMinCreditCardCount 5  # This option sets the lowest number of Social Security Numbers found # in a file to generate a detect. # Default: 3 #StructuredMinSSNCount 5  # With this option enabled the DLP module will search for valid # SSNs formatted as xxx-yy-zzzz # Default: yes #StructuredSSNFormatNormal yes  # With this option enabled the DLP module will search for valid # SSNs formatted as xxxyyzzzz # Default: no #StructuredSSNFormatStripped yes  # Archives ScanArchive yes ArchiveBlockEncrypted no 

Configure Razor. Type the following: 

> razor-admin -register -user=some_user -pass=somepas

Update and restart clamav: 

> freshclam 

> service clamd restart

Configuring Amavisd-new

You need to edit /etc/amavisd.conf

Here is a list of items you should change. just scroll through the file to find each item.

Now enable clamav: 

Change the following:

to

 # ### http://www.clamav.net/ # ['ClamAV-clamd', #   \&ask_daemon, ["CONTSCAN {}\n", "/var/run/clamav/clamd"], #   qr/\bOK$/m, qr/\bFOUND$/m, #   qr/^.*?: (?!Infected Archive)(.*) FOUND$/m ], 

  ### http://www.clamav.net/  ['ClamAV-clamd',    \&ask_daemon, ["CONTSCAN {}\n", "/var/run/clamav/clamd"],    qr/\bOK$/m, qr/\bFOUND$/m,    qr/^.*?: (?!Infected Archive)(.*) FOUND$/m ], 

Now update spamassassin and start amavisd-new. 

> sa-update 

> service amavisd-new start

Be sure to set amavisd-new to start at boot.

Telling Postfix to Start Filtering SPAM

To get postfix going we need to un-comment a couple lines in /etc/postfix/master.cf 

Find:

Change to:

 smtp      inet  n       -       n       -       -       smtpd #  -o content_filter=smtp-amavis:127.0.0.1:10024 #  -o receive_override_options=no_address_mappings  

 smtp      inet  n       -       n       -       -       smtpd   -o content_filter=smtp-amavis:127.0.0.1:10024   -o receive_override_options=no_address_mappings 

Restart postfix and you're done.

Using The Roundcubemail Password Plugin (Optional)

Let your users change their password using roundcubemail instead of postfixadmin.

Edit /etc/roundcubemail/main.inc.php and find the lines and make the changes below:

find:

change to:

 $rcmail_config['plugins'] = array('managesieve'); 

 $rcmail_config['plugins'] = array('managesieve','password'); 

Now lets configure the password plugin. 

> cd /usr/share/roundcubemail/plugins/password/ 

> cp config.inc.php.dist config.inc.php

Edit config.inc.php

find:

change to:

 $rcmail_config['password_db_dsn'] = ''; 

 $rcmail_config['password_db_dsn'] = 'mysql://postfix:your-postfixadmin-password@localhost/postfix'; 

find:

change to:

 $rcmail_config['password_query'] = 'SELECT update_passwd(%c, %u)'; 

 $rcmail_config['password_query'] = 'UPDATE mailbox SET password=%c WHERE username=%u limit 1;'; 

Restart apache. 

> service httpd restart