You can clone with HTTPS or SSH.
alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases command_directory = /usr/sbin config_directory = /etc/postfix daemon_directory = /usr/libexec/postfix debug_peer_level = 2 html_directory = no inet_interfaces = localhost mail_owner = postfix mailq_path = /usr/bin/mailq.postfix manpage_directory = /usr/share/man mydestination = $myhostname, localhost.$mydomain, localhost newaliases_path = /usr/bin/newaliases.postfix queue_directory = /var/spool/postfix readme_directory = /usr/share/doc/postfix-2.3.3/README_FILES relayhost = [smtp.gmail.com]:587 sample_directory = /usr/share/doc/postfix-2.3.3/samples sendmail_path = /usr/sbin/sendmail.postfix setgid_group = postdrop smtp_enforce_tls = no smtp_sasl_auth_enable = yes smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd smtp_sasl_security_options = noanonymous, noplaintext smtp_sasl_tls_security_options = noanonymous smtp_tls_CAfile = /etc/pki/tls/certs/ca-bundle.crt smtp_tls_loglevel = 3 smtp_tls_note_starttls_offer = yes smtp_tls_security_level = may smtp_use_tls = yes unknown_local_recipient_reject_code = 550