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Linux系统中的Sendmail服务器的安装和配置

 2012-12-09 13:53:54 来源:WEB开发网   
核心提示: 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.html1.首先安装Sendmail所需软件[root@localhost ~]#

 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

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Tags:Linux Sendmail 服务器

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