Default postfix configuration (version 2.6.6, release 2.2.el6_1)
Basic configuration (myhostname, mydomain, inet_interfaces, proxy_interfaces
mynetworks, notify_classes).

Setup relay domain (relay_recipients, relay_domains).

Set transport map (transport_maps).
Configured TLS support in Postfix (smtpd_tls_cert_file, smtpd_tls_key_file,
smtpd_tls_security_level and smtpd_tls_loglevel).
Set up virtual alias domain (virtual_alias_domain, virtual_maps) for clairmail.org.

* used for testing purposes *
Configure amavisfeed hook (content_filter) as well as new services in master.cf.
Performance enhancements for content filtering (amavisd) as outlined here:

	http://www.ijs.si/software/amavisd/README.postfix.html#d0e968

Created two cleanup services and set the maximum number of concurrent processes.
Enable Sender Policy Framework (SPF) for email validation.

Requires the following package be installed: 

	https://launchpad.net/postfix-policyd-spf-perl/
Added owner, group and mode properties.
Set mailbox style to MailDir from mbox (easier to parse specific messages).

Added new entries to virtual table.
Configured backup MX settings.

When running as a backup MX you will need to edit main.cf and comment out

	- transport_maps
	- smtpd_client_restrictions

Also ensure you edit the server specific variables:

	- myhostname
	- proxy_interfaces
	- smtpd_tls_cert_file
	- smtpd_tls_key_file
Implemented postgrey which involved adding a secondary check_policy_service to
smtpd_recipient_restrictions. Requires package postgrey.

Added a check_client_access to both smtpd_recipient_restrictions and
smtpd_client_restrictions. The recipient restrictions bypass SPF policy
check when mail comes from backup MX. The client restrictions bypass
amavisd when mail comes from the backup MX.
Disabled the SMTP VRFY command. 

Security warning CVE-1999-0531.
Modified for vcsdeploy naming convention.
Set message_size_limit = 2048000 (20 Mbytes). This increases the maximum size of email messages accepted.
Converted main.cf to Puppet ERB template.

This module can now be deployed via Puppet module postfix.
Added smtp-01.monitise.net and smtp-02.monitise.net to whitelist.
Added new Santa Rosa Exchange server.
Updated transport file to send @clairmail.com to cm-c1ex02 (192.168.12.14).
Import from SVN
Merge branch 'master' of https://github.com/cyrus-mc/config