postfix 遇到的问题 Connection closed by foreign host

telnet localhsot 259时出错,Connection closed by foreign host。

1 查看 防火墙是否关闭,

2./etc/sysconfig/selinux  SELINUX=disabled

3.9因我我装dovecot 少安装了两个组件dovecot-devel 、dovecot-mysql

yum install dovecot-devel dovecot-mysql  -y.

 

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