Mail server configuration on linux

Software Requirement :

1. Fedora Core 13

2. Mail Server Postfix version 2.7.0

3. Fetchmail version 6.3.17

4. Dovecot Version 1.2.16

Mail server configuration:

Local domain : deepakshionline.local

Register domain : deepakshionline.com

Postfix Configuration

1. Edit main.cf

 

myhostname = mail.deepakshionline.local
mydomain = deepakshionline.local
myorigin = $mydomain
inet_interfaces = all
mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain
mynetworks = 192.168.0.0/24, 127.0.0.0/8
relay_domains = $mydestination

#configuration for SMTP authentication
relayhost = [mail.deepakshionline.com]
smtp_sasl_auth_enable = yes
smtp_sasl_security_options = noanonymous
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
canonical_maps = hash:/etc/postfix/canonical
virtual_alias_maps = hash:/etc/postfix/virtual
smtp_generic_maps = hash:/etc/postfix/generic
home_mailbox = Maildir/

2. create a file sasl_passwd and enter mail server address username and password then save

mail.deepakshionline.com    username@deepakshionline.com:password

3. then open terminal and type

postmap hash:/etc/postfix/sasl_passwd

4. Open /etc/postfix/canonical and enter

@deepakshionline.local @deepakshionline.com

Note:- It is required so that localuser mail id will change to .com for local user only

5. Open /etc/postfix/generic and enter

@deepakshionline.local @deepakshionline.com
 
Note:- It is required so that localuser mail id will change to .com when mail is delivered to remote users.

6. Open /etc/postfix/virtual

manojsingh@deepakshionline.com manojsingh

production@deepakshionline.com production

Note: It is required so that if you enter manojsingh@deepakshionline.com instead of manojsingh@deepakshionline.local delivered to manojsingh locally.

7. Type following command to create hash file.

postmap hash:/etc/postfix/canonical

postmap hash:/etc/postfix/generic

postmap hash:/etc/postfix/virtual

8. Reload postfix using command

postfix reload

Fetchmail configuration 

1. Create a file .fetchmailrc and enter following command to fetch mail from ISP.

set no bouncemail
poll deepakshionline.com with protocol POP3, with options
localdomains deepakshionline.local
envelope "Envelope-to"
user "username@deepakshionline.com" there with password "password" is *
here
with options rewrite mimedecode fetchall
pass8bits
 

2. chmod 600 .fetchmailrc

3. Use command "fetchmail" to fetch mail from ISP

Create Users and Permission

1. create user manojsingh then type following command for permission

mkdir /home/manojsingh/Maildir
chown manojsingh:manojsingh /home/manojsingh/Maildir
chmod -R 700 /home/manojsingh/Maildir 

Enable SASLAuthentication

1. service saslauthd start