[CentOS] Sendmail

# yum -y install sendmail sendmail-cf

# vi /etc/mail/sendmail.cf

>---------------------------------------<

1239 (쉬프트+g)

R$*        $#error $@ 5.7.1 $: "550 Relaying denied" <-주석

1329 (쉬프트+g)

R<FAIL>    $#error $@ 5.7.1 $: "550 Relaying denied. IP name lookup failed " $&{client_name} <-주석

>---------------------------------------<

# vi /etc/mail/local-host-names

# vi /etc/mail/sendmail.mc

>---------------------------------------<

dnl define(`SMART_HOST', `smtp.your.provider')dnl

dnl TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
dnl define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN)dnl

# 앞의 dnl 제거, smtp.your.provider 변경

DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl

# Addr=127.0.0.1 -> 제거

dnl FEATURE(masquerade_envelope)dnl

# 앞의 dnl 제거

FEATURE(`allmasquerade')

FEATURE(dnsbl,`sbl.spamhaus.org',`',`Rejected - see http://www.spamhaus.org/sbl/')dnl

FEATURE(dnsbl, `spamlist.or.kr', `Rejected - see http://www.kisarbl.or.kr/')dnl

>---------------------------------------<

# m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf

# service saslauthd start

# yum -y install dovecot

# vi /etc/dovecot/dovecot.conf

>---------------------------------------<

protocols = imap pop3 lmtp

listen = *, ::

>---------------------------------------<

# vi /etc/dovecot/conf.d/10-auth.conf

>---------------------------------------<

disable_plaintext_auth = no

>---------------------------------------<

# vi /etc/sysconfig/iptables

>---------------------------------------<

25

110

993

995

>---------------------------------------<

# service iptables restart