centos7 Sendmail 설치 및 테스트 (기본)
# Sendmail 설치 # Sendmail 설치 확인 [root@localhost ~]# rpm -qa sendmail* # Sendmail 설치 [root@localhost ~]# yum install sendmail sendmail-cf # Sendmail 시작과 자동실행 등록, 상태 확인 [root@localhost ~]# systemctl start sendmail [root@localhost ~]# systemctl enable sendmail [root@localhost ~]# systemctl status sendmail # Sendmail.mc 설정 [root@localhost ~]# vi /etc/mail/sendmail.mc # before dnl TRUST_AUTH_MECH(`EXT..