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首页 > 工作 > 修改完主机名要记得在postfix配置文件里更新

修改完主机名要记得在postfix配置文件里更新

很奇怪公司的一台mail server在重新绑定了ip,更改了hostname之后,就不能用了,具体的表现是可以发邮件,但是却收不到。
查了一下,服务都是开启的,端口也没有问题,telnet登录的上去,但是如果给这台机子发邮件就一直发不过去。搞了半天没想起来问题在哪,上厕所的时候突然想起来在/etc/postfix/main.cf里填写过hostname, 把这个配置里的hostname更新之后重启服务果然行了。
问题在于postfix是send server啊,receive server是dovecot,真没弄明白怎么回事。
在这简略记录一下用telnet收发邮件的方法。
收邮件,telnet 127.0.0.1 110 #110是pop3的端口
成功登陆会有提示,然后user 用户名,pass 密码就可以登陆上去。

一些简单的命令

1.stat命令 格式:stat 无需参数

2.list命令 格式:list [n] 参数n可选,n为邮件编号

3.uidl命令 格式:uidl [n] 同上

4.retr命令 格式:retr n 参数n不可省,n为邮件编号

5.dele命令 格式:dele n 同上

6.top 命令 格式:top n m 参数n,m不可省,n为邮件编号,m为行数

7.noop命令 格式:noop 无需参数

8.quit命令 格式:quit 无需参数

telnet 127.0.0.1 25 登陆上去 mail from:<mail address from>

RCPT TO: mail address to

DATA

Subject:

然后正文,以单独行的一个英文句号结束。

或者也可以把文件正文写到一个文件里,直接在命令行下 mail -s “主题” addresss <file

另外,发现那台server 机子用的是fedora core 6…做server的话,arch和Gentoo这种滚动发行的跟那些跨版发行的比起来优势就很大了啊,升级方便,像现在这台机子要想把软件升级成最新版本只能自己编译…

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