Linux系统中的Sendmail服务器的安装和配置

 首先我们 把DNS服务器安装OK 能够解析，不明白的看linux.chinaitlab.com/server/725027.html">http://linux.chinaitlab.com/server/725027.html,1.首先安装Sendmail所需软件,[root@localhost ~]# rpm -q sendmail m4,sendmail-8.13.1-2,m4-1.4.1-16 已经默认安装了，还需挂载第4张光盘，安装与sendmail相关的软件,[root@localhost RPMS]# rpm -ivh sendmail-*,warning: sendmail-cf-8.13.1-2.i386.rpm: V3 DSA signature: NOKEY, key ID db42a60e,Preparing…… ########################################### [100%],1:sendmail-doc ########################################### [ 33%],2:sendmail-cf ########################################### [ 67%],3:sendmail-devel ########################################### [100%],2.修改/etc/mail/local-hosts-name文件。,增加本地域和主机的FQDN，记住只是本地主机的FQDN和域名FQDN，不要添加其他域的，否则向外域发送邮件的时候会出现user unknown的错误：,[root@localhost named]# cat /etc/mail/local-host-names,# local-host-names - include all aliases for your machine here.,ltest.com,3.更改/etc/mail/sendmail.mc文件，修改下列地方：,DaemonPortsOptions=Port=smtp,Addr=127.0.0.1, Name=MTA 更改为：,DaemonPortsOptions=Port=smtp,Addr=yourip或者0.0.0.0, Name=MTA,然后m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf,4.用户管理,认证的配置：修改/etc/mail/sendmail.mc中的字段，取消“TRUST_AUTH_MECH”一行和下一行“define” 处的注释。（于sendmail.mc文件的第48、49）然后m4 /etc/ mail/sendmail.mc>/etc/mail/sendmail.cf。,[root@localhost named]# chkconfig ——list saslauthd 开启认证,saslauthd 0:off 1:off 2:off 3:off 4:off 5:off 6:off,[root@localhost named]# chkconfig ——level 35 saslauthd on,建立用户帐号,[root@localhost named]# groupadd mailuser,[root@localhost named]# adduser -g mailuser -s /sbin/nologin mike,[root@localhost named]# adduser -g mailuser -s /sbin/nologin john,[root@localhost named]# passwd mike,[root@localhost named]# passwd john 密码都是123,设置邮件别名和邮件群发,修改/etc/aliases文件实现邮件转发和邮件列表：,admin: mike 为邮件用户mike设置别名admin,testgroup: mike,john 实现群发 发给testgroup的邮件发给mike 和 john 以上2个可以分别测试,#newaliases,5.访问控制设置,更改/etc/mail/accesss文件，增加：,[root@localhost named]# cat /etc/mail/access,# Check the /usr/share/doc/sendmail/README.cf file for a description,# of the format of this file. (search for access_db in that file),# The /usr/share/doc/sendmail/README.cf is part of the sendmail-doc,# package.,#,# by default we allow relaying from localhost……,localhost.localdomain RELAY,localhost RELAY,127.0.0.1 RELAY,ltest.com RELAY,完成后makemap hash /etc/mail/access.db < /etc/mail/access进行数据库更新。,6.#service sendmail restart,[root@localhost named]# service sendmail restart 启动服务,Shutting down sendmail: [FAILED],Starting sendmail: [ OK ],Starting sm-client: [ OK ],[root@localhost named]# telnet localhost 25,Trying 127.0.0.1……,Connected to localhost.localdomain (127.0.0.1).,Escape character is ^].,220 localhost.localdomain ESMTP Sendmail 8.13.1/8.13.1; Sat, 17 Mar 2007 12:54:47 +0800,ehlo localhost,250-localhost.localdomain Hello localhost.localdomain [127.0.0.1], pleased to meet you,250-ENHANCEDSTATUSCODES,250-PIPELINING,250-8BITMIME,250-SIZE,250-DSN,250-ETRN,250-AUTH DIGEST-MD5 CRAM-MD5 LOGIN PLAIN ——认证应该生效,250-DELIVERBY,250 HELP,quit,221 2.0.0 localhost.localdomain closing connection,Connection closed by foreign host.,7.安装邮局服务,[root@localhost RPMS]# rpm -ivh dovecot-0.99.11-2.EL4.1.i386.rpm ——aid,warning: dovecot-0.99.11-2.EL4.1.i386.rpm: V3 DSA signature: NOKEY, key ID db42a60e,Preparing…… ########################################### [100%],1:perl-DBI ########################################### [ 20%],2:postgresql-libs ########################################### [ 40%],3:mysql ########################################### [ 60%],4:dovecot ########################################### [ 80%],5:perl-DBD-MySQL ########################################### [100%],把1-5这些软件都安装完毕才可以继续下去呢，，，，,[root@localhost /]# vi /etc/dovecot.conf在protocols = imap imaps 后添加pop3 pop3s,启动dovecot服务,[root@localhost /]# service dovecot restart,Stopping Dovecot Imap: [FAILED],Starting Dovecot Imap: [ OK ],[root@localhost /]# chkconfig ——level 35 dovecot on,