摘要：[root@mail CA]# openssl req -new -x509 -key private/cakey.pem -out cacert.pem -days 36560You are about to be asked to enter information that will be i 阅读全文

摘要：请先看基础篇 https://www.cnblogs.com/hellojackyleon/p/9281620.html https://sourceforge.net/projects/courier/files/authlib/0.66.3/courier-authlib-0.66.3.tar. 阅读全文

摘要：# yum remove postfix ##删除系统自带postfix# userdel postfix# groupdel postdrop# groupadd -g 2525 postfix# useradd -g postfix -u 2525 -s /sbin/nologin -M pos 阅读全文