CENTOS7 Installation configuration Postfix

Yum install postfix dovecot CYRUS-SASL

# VI/ETC/POSTFIX/MAIN.CF

Myhostname = mail.wc365.com

MyDomain = wc365.com

Myorigin = $mydomain

Inet_interfaces = All

Inet_protocols = IPv4

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

Mail. $mydomain, www. $mydomain, ftp. $mydomain

Mynetworks = 127.0.0.0/8

Relay_domains = $mydestination

Message_size_limit = 1073741824

Default_process_limit = 50

Default_destination_concurrency_limit = 20

Smtpd_sasl_auth_enable = yes

Smtpd_sasl_local_domain = $myhostname

Smtpd_sasl_application_name = smtpd

Broken_sasl_auth_clients = yes

Smtpd_recipient_restrictions = Permit_mynetworks,permit_sasl_authenticated,reject_unauth_destination

Smtpd_client_restrictions = permit_sasl_authenticated

Smtpd_sasl_security_options = noanonymous

# Systemctl Start Postfix.server (check Port No. 25th)

# vi/etc/dovecot/dovecot.conf

protocols = IMAP POP3 LMTP

Listen = *

# Systemctl Start Dovecot.server (check Port No. 110,143)

# VI/ETC/SYSCONFIG/SASLAUTHD

Socketdir=/var/run/saslauthd

Mech=shadow

# cat/etc/sasl2/smtpd.conf

Pwcheck_method:saslauthd

Mech_list:plain Login

# Systemctl Start Saslauthd.server

Test 1:

# telnet mail.wc365.com 25

Trying 192.168.1.2 ...

Connected to Mail.wc365.com (192.168.1.2).

Escape character is ' ^] '.

Mail.yjw.com ESMTP Postfix

EHLO 163.com (you just need to enter the line, it's real information)

250-mail.wc365.com

250-pipelining

250-size 10240000

250-vrfy

250-etrn

250-auth LOGIN PLAIN

250-auth=login PLAIN

250-enhancedstatuscodes

250-8bitmime

DSN

Quit (Enter Exit command)

221 2.0.0 Bye

Connection closed by foreign host.

Test 2:

echo "This is a test mail" | Mail-s mailname QQ No. @qq.com (check QQ mailbox for new mail)

Error 1:postfix/sendmail[13310]: Fatal:parameter Inet_interfaces:no local interface found for:: 1

Resolution 1:

Vi/etc/postfix/main.cf

#inet_protocols = All (comment out the line)

#wc ADD1

Inet_protocols = IPv4

Systemctl start postfix (check port number to see if it is up)

Error 2:error 2002 (HY000): Can ' t connect to local MySQL server through socket '/tmp/mysql.sock ' (111)

Solve 2:ln-s/var/lib/mysql/mysql.sock/tmp/mysql.sock

CENTOS7 Installation configuration Postfix