Postfix main.cf

In this main_cf_files.cfg example, we specify a SuSE Linux version of the Postfix main configuration file, /etc/postfix/main.cf.  Note the use of the =pikthostname macro, which is a PIKT built-in that resolves to the current slave system hostname.

///////////////////////////////////////////////////////////////////////////////
//
// main_cf_files.cfg
//
///////////////////////////////////////////////////////////////////////////////

main.cf         path "/etc/postfix/main.cf" mode 644 uid 0 gid 0

#if suse

        #
        # -----------------------------------------------------------------------
        # NOTE: Many parameters have already been added to the end of this file
        #       by SuSEconfig.postfix. So take care that you don't uncomment
        #       and set a parameter without checking whether it has been added
        #       to the end of this file.
        # -----------------------------------------------------------------------
        #
        # Global Postfix configuration file. This file lists only a subset
        # of all 300+ parameters. See the sample-xxx.cf files for a full list.
        # 
        
[text omitted here for brevity]
        
        myhostname = =pikthostname=_.earlymusichicago.org
        inet_protocols = all
        biff = no
        mail_spool_directory = /var/mail
        canonical_maps = hash:/etc/postfix/canonical
        virtual_alias_maps = hash:/etc/postfix/virtual
        virtual_alias_domains = hash:/etc/postfix/virtual
        relocated_maps = hash:/etc/postfix/relocated
        transport_maps = hash:/etc/postfix/transport
        sender_canonical_maps = hash:/etc/postfix/sender_canonical
        masquerade_exceptions = root
        masquerade_classes = envelope_sender, header_sender, header_recipient
        masquerade_domains = 

#if mailserver
        inet_interfaces = 192.168.2.2 192.168.4.2 127.0.0.1 ::1
#else
        inet_interfaces = all
#endif

#if mailserver
        mydestination = $myhostname, localhost.$mydomain,
                        pikt.org, pikt.net,
                        earlymusichicago.org, earlymusicchicago.org
#else
        mydestination = $myhostname, localhost.$mydomain
#endif

        defer_transports = 

#if mailserver
        mynetworks = 192.168.2.0/24, 192.168.4.0/24
#else
        mynetworks = 192.168.2.0/24
#endif    

#if mailserver
        disable_dns_lookups = no
#else
        disable_dns_lookups = yes
#endif

        relayhost = 
        content_filter = 
        mailbox_command = /usr/bin/procmail
        mailbox_transport = 
        strict_8bitmime = no
        smtpd_sender_restrictions = check_sender_access hash:/etc/postfix/access,
                                    permit_mynetworks,
                                    reject_invalid_hostname,
                                    reject_non_fqdn_hostname,
                                    reject_non_fqdn_sender,
                                    reject_unauth_pipelining,
                                    reject_unknown_client,
                                    reject_unknown_hostname,
                                    reject_unknown_sender_domain
        smtpd_client_restrictions = 
        smtpd_helo_required = yes
        smtpd_helo_restrictions = permit_mynetworks,
                                  reject_unknown_client,
                                  reject_invalid_hostname,
                                  reject_unauth_pipelining,
                                  reject_unknown_hostname,
                                  reject_non_fqdn_hostname 
        strict_rfc821_envelopes = no
        smtpd_recipient_restrictions = permit_mynetworks,
                                       reject_unauth_destination,
                                       reject_invalid_hostname,
                                       reject_non_fqdn_sender,
                                       reject_non_fqdn_recipient,
                                       reject_unknown_sender_domain,
                                       reject_unknown_recipient_domain,
                                       reject_unauth_pipelining,
                                       reject_non_fqdn_hostname
        smtp_sasl_auth_enable = no
        smtpd_sasl_auth_enable = no
        smtpd_use_tls = no
        smtp_use_tls = no

#if mailserver
        alias_maps = hash:/etc/aliases, hash:/var/lib/mailman/data/aliases
#else
        alias_maps = hash:/etc/aliases
#endif

        mailbox_size_limit = 0
        message_size_limit = 10240000

#endif  // suse
        
///////////////////////////////////////////////////////////////////////////////

On the piktmaster system, we would install the main.cf file to the venice SuSE Linux system with the command:

# piktc -iv +F main.cf +H venice

For more examples, see Samples.