How to Install and Deploy Home Email Server

Background

I have a headless PC running Centos 6.4. I want to copy the photos in my iPhone to the headless PC. iPhone allows the photos to be copied via email.

Objective

• Install and deploy Postfix MTA/MDA
  
• Add MX entry for private domain name

Prerequisite

Installed and configure home DNS server.

Environment

• Centos 6.4
  
• SELinux is turned on

Procedure

1. Install postfix
   
   #yum install postfix
   
2. Configure postfix
   
   #vi /etc/postfix/main.cf:
   
   myhostname = mail.example.com
   mydomain = example.com
   myorigin = $mydomain
   inet_interfaces = all
   mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain
   mynetworks = 192.168.0.0/24, 127.0.0.0/8
   relayhost =
   home_mailbox = Maildir/
   
3. Start postfix service
   
   #service postfix start
   
4. Let smtp packets through the firewall
   
   #iptables -I INPUT 2 -p tcp --dport 25 -m state --state NEW -j ACCEPT
   
5. Add MX entry to zone file
   
   @ IN MX 10 mail.example.com.
   
6. Add alias name mail.example.com for mail server
   
   mail            IN      CNAME   vaio
   
   

References:

https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/pdf/Deployment_Guide/Red_Hat_Enterprise_Linux-6-Deployment_Guide-en-US.pdf

http://wiki.centos.org/HowTos/postfix#head-d7bc8b1398b0a0cf6f9ef2556e4db84812c8dbfd