Configure E-Mail Server in Linux

This is how to install and configure an E-Mail Server in Linux. First configure SMTP and POP/IMAP server using Dovecot and Postfix. As email client use Outlook express, Mozilla Thunderbird,etc. This configurations should work in all RPM based linux distributions (Redhat, CentOS, Fedora, etc.)

Step1: Install and configure SMTP Server using postfix (Click here )

Step2: Install and configure POP/IMAP server using Dovecot (Click Here)

Step3:Create a mail accounts in mail server for mail access and set password (creating user in nologin shell is recommented) 
[root@server ~#]useradd -s /sbin/nologin james
[root@server ~#]passwd james

now the mail account "" is successfully created. Create more than one mail accounts in the same way and test the server by sending mail each other..

After configuring SMTP and POP/IMAP server, and mail accounts, configure your outlook(or any other) as email client

Step4: Start Outlook Express and follow the below screenshots

Select "Tools" and then "Accounts"
Select "Add" and then Select "Mail"
Type a Display name (Just a name)
type full email address

Change to "IMAP" and type server ipaddress or hostname
Click next
Finish setup
Right click on your email domain name and select "IMAP Folders"

Type username and password

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