Linux and cloud Computing--the second phase of Linux Server Erection Chapter nineth: Mail e-mail server erection-postfix and Dovecot

Linux and Cloud computing--the second phase of Linux Server Setup The nineth Chapter:Mail email server erecting-postfix and Dovecot installing Postfix

installation Postfix come to Configure SMTP Server . SMTP uses 25/tcp.

[1] Postfix is a CentOS system The default installation, even if you choose the minimum installation, if the confirmation is not installed, please first install .

[Email protected] ~]# yum-y install Postfix

[2] Use Dovecot ' s SASL come to Configuration SMTP Authentication .

[Email protected] ~]# VI/ETC/POSTFIX/MAIN.CF

# line: Remove Comments and Modify Host name

Myhostname = mail.example.com

# line: Remove Comments and define the domain name

MyDomain = example.com

# line: Remove Comments

Myorigin = $mydomain

# line: Modify

Inet_interfaces = All

# line 164: Add

mydestination = $myhostname, localhost. $mydomain, localhost, $mydomain

# line: Remove Comments and modify it according to your local LAN environment

Mynetworks = 127.0.0.0/8, 192.168.96.0/24

# line 419: Remove Note (use Maildir)

Home_mailbox = maildir/

# line 574: Add

Smtpd_banner = $myhostname ESMTP

# on the last side Add following content

# limit an e-mail size for 10M

Message_size_limit = 10485760

# limit a mailbox for 1G

Mailbox_size_limit = 1073741824

# for Smtp-auth

Smtpd_sasl_type = Dovecot

Smtpd_sasl_path = Private/auth

Smtpd_sasl_auth_enable = yes

Smtpd_sasl_security_options = noanonymous

Smtpd_sasl_local_domain = $myhostname

Smtpd_recipient_restrictions = Permit_mynetworks,permit_auth_destination,permit_sasl_authenticated,reject

[Email protected] ~]# systemctl restart Postfix

[Email protected] ~]# Systemctl enable Postfix

Installing Dovecot

installation Dovecot come to Configure Pop/imap Server . POP uses 110/tcp, IMAP uses 143/tcp.

[1] Install dovecot.

[Email protected] ~]# yum-y install Dovecot

[2] provide SASL function to Postfix.

[Email protected] ~]# vi/etc/dovecot/dovecot.conf

# line: Remove Comments

protocols = IMAP POP3 LMTP

# line: Remove Comments and Modify ( If you do not use IPv6)

Listen = *

[Email protected] ~]# vi/etc/dovecot/conf.d/10-auth.conf

# line Ten: Remove Comments and modify ( allow Clear text authentication)

Disable_plaintext_auth = No

# line: Increase

Auth_mechanisms = Plain Login

[Email protected] ~]# vi/etc/dovecot/conf.d/10-mail.conf

# line: Remove Comments and add

Mail_location = Maildir:~/maildir

[Email protected] ~]# 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

}

[Email protected] ~]# vi/etc/dovecot/conf.d/10-ssl.conf

# line 8: Modify ( do not use SSL)

SSL = No

[Email protected] ~]# systemctl start Dovecot

[Email protected] ~]# Systemctl enable Dovecot

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Linux and cloud Computing--the second phase of Linux Server Erection Chapter nineth: Mail e-mail server erection-postfix and Dovecot