Linux下使用sendmail发送邮件
现在每天需要将统计数据发送给指定的人员。
使用原始手工的方式每天发送很麻烦,于是想改成一个定时任务,让服务器自动发送。
技术告诉我说他有写过sendmail的一个脚本。
我尝试使用了一下,发现 service sendmail status的时候,总是会出现如下东西。我不知道是不是我的误操作导致的邮件发送阻塞。
Oct 5 07:00:01 sgadmin sendmail[30731]: u94N01EY030730: to=<root@sgadmin>, ctladdr=<root@sgadmin> (0/0), delay=00:00:00, xdelay=00:00:00, mailer=local, pri=138838, dsn=2.0.0, stat=Sent Oct 5 07:00:34 sgadmin sendmail[30736]: My unqualified host name (sgadmin) unknown; sleeping for retry Oct 5 07:01:34 sgadmin sendmail[30736]: unable to qualify my own domain name (sgadmin) -- using short name Oct 5 08:00:01 sgadmin sendmail[30736]: u94N1YKI030736: from=root, size=446, class=-60, nrcpts=1, msgid=<201610042301.u94N1YKI030736@sgadmin>, relay=root@localhost Oct 5 08:00:01 sgadmin sendmail[31179]: u950017D031179: from=<root@sgadmin>, size=667, class=-60, nrcpts=1, msgid=<201610042301.u94N1YKI030736@sgadmin>, proto=ESMTP, daemon=MTA, relay=localhost [127.0.0.1] Oct 5 08:00:01 sgadmin sendmail[30736]: u94N1YKI030736: to=root, ctladdr=root (0/0), delay=00:58:27, xdelay=00:00:00, mailer=relay, pri=138446, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (u950017D031179 Message accepted for delivery)
然后我让sendmail服务重启了一下。这下可就不对了
1.启动时间很长(时间长估计是因为有错误的原因)
2.启动后报错
去查看log日志(cat /var/log/maillog),报错信息如下所示
Oct 7 12:00:02 sgadmin sendmail[10425]: u97401JN010424: to=<root@sgadmin>, ctladdr=<root@sgadmin> (0/0), delay=00:00:01, xdelay=00:00:00, mailer=local, pri=138838, dsn=2.0.0, stat=Sent Oct 7 12:00:35 sgadmin sendmail[10430]: My unqualified host name (sgadmin) unknown; sleeping for retry Oct 7 12:01:35 sgadmin sendmail[10430]: unable to qualify my own domain name (sgadmin) -- using short name Oct 7 12:21:34 sgadmin sendmail[10653]: My unqualified host name (sgadmin) unknown; sleeping for retry Oct 7 12:22:34 sgadmin sendmail[10653]: unable to qualify my own domain name (sgadmin) -- using short name Oct 7 12:22:34 sgadmin sendmail[10660]: starting daemon (8.14.7): SMTP+queueing@01:00:00 Oct 7 12:22:34 sgadmin sm-msp-queue[10673]: My unqualified host name (sgadmin) unknown; sleeping for retry Oct 7 12:23:34 sgadmin sm-msp-queue[10673]: unable to qualify my own domain name (sgadmin) -- using short name Oct 7 12:23:34 sgadmin sm-msp-queue[10678]: starting daemon (8.14.7): queueing@01:00:00 Oct 7 12:36:32 sgadmin sendmail[10877]: My unqualified host name (sgadmin) unknown; sleeping for retry Oct 7 12:37:32 sgadmin sendmail[10877]: unable to qualify my own domain name (sgadmin) -- using short name Oct 7 12:37:32 sgadmin sendmail[10882]: starting daemon (8.14.7): SMTP+queueing@01:00:00 Oct 7 12:37:32 sgadmin sm-msp-queue[10894]: My unqualified host name (sgadmin) unknown; sleeping for retry Oct 7 12:38:32 sgadmin sm-msp-queue[10894]: unable to qualify my own domain name (sgadmin) -- using short name Oct 7 12:38:32 sgadmin sm-msp-queue[10912]: starting daemon (8.14.7): queueing@01:00:00
错误很明显。意识是找不到sgadmin这个域名。
于是乎就想到修改 /etc/hosts 文件
加上 ip sgadmin 之后重启sendmail服务,仍然报同样的错
这让我很费解啊,我已经加上了啊,难道说没有生效?
然后找到一篇文章,文章说 FQDN里面规定域名必须用"."结尾
于是我又一次修改hosts 意 ip sgadmin. sgadmin 这样的方式
然后重启sendmail服务,一切正常,启动速度也很快,估计是少了寻找domain的时间
博文地址:http://blog.csdn.net/taolinke/article/details/4496316
其实这里我还有疑问。那个技术之前也没有在hosts中添加sgadmin这个域名,为什么他能够正常的发送邮件???
再继续研究一下,未完待续。