How to install mail server in linux

1.Install Dovecot.

[root@mail ~]# yum -y install dovecot

Dovecot Configuration

[root@mail ~]# vi /etc/dovecot/dovecot.conf
# line 24: uncomment
protocols = imap pop3 lmtp
# line 30: uncomment and change ( if not use IPv6 )
listen = *

[root@mail ~]# vi /etc/dovecot/conf.d/10-auth.conf
# line 10: uncomment and change ( allow plain text auth )
disable_plaintext_auth = no
# line 100: add
auth_mechanisms = plain login

[root@mail ~]# vi /etc/dovecot/conf.d/10-mail.conf
# line 30: uncomment and add
mail_location = maildir:~/Maildir

[root@mail ~]# vi /etc/dovecot/conf.d/10-master.conf
# line 96-98: uncomment and add like follows
# Postfix smtp-auth
unix_listener /var/spool/postfix/private/auth {
    mode = 0666
    user = postfix
    group = postfix
}

[root@mail ~]# vi /etc/dovecot/conf.d/10-ssl.conf
# line 8: change (not require SSL)
ssl = no

[root@mail ~]# systemctl start dovecot
[root@mail ~]# systemctl enable dovecot

#yum install httpd

This answer from AWS Amazon forum:

#yum -y install yum-utils
#yum repolist all
#yum-config-manager --enable rhui-REGION-rhel-server-extras rhui-REGION-rhel-server-optional

Then you can install php-mbstring, and maybe, I don't know exactly, but maybe it can help for servers on Amazon only.

#yum install php-mbstring

#yum install squirrelmail

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