internal mail relay processing error

Working Principle and related concepts of POSTFIX Postfix internal email receiving and sending Flowchart The entire process is divided into three stages: receiving emails, queuing emails, and delivering emails. A group of independent Postfix

Now we will use a practical example to briefly introduce the setting of Kerio MailServer and the application of POP3DOWNLOA D. These are For Windows. Linux fans should stop. For non-small mail systems, Kerio MailServer is not a good choice. Use

According to statistics, at present, China's telecom network service access rate is only about 45%. If the access rate increases by one percentage point, the income can reach 1 billion yuan, and the current switch overload in China can be

Learn linux with me 15-Linux Enterprise Application-Linux server application information. The following is a detailed description. We will continue to learn the content of Lesson 14. Sorry, it's really slow to update things recently, but I won't be

So far, our main focus has been onPostfixThe role played at the end of the delivery path. That's it. That is, emails sent to the postfix server are mainly delivered to the local system. However, postfix also plays a role Another role-a repeater

Excerpt from: http://blog.sina.com.cn/s/blog_72c4b92501012ll7.htmlA novice contact joomla! The process should look like this: After seeing the word, you first have to figure out "what is joomla!" and then you want to "try it out". However,joomla! is

Network Protocol Model Analysis Network Protocol designers should not design a single, huge protocol to complete the details of all forms of communication regulations, but should divide the communication problems into multiple small problems, then a

The program-controlled PBX, which is called the Storage Control switch (which corresponds to the routing logic switch, referred to as the have been supervised switch), is also known as a program-controlled digital switch or digital PBX. It usually

Compare the OSI seven layer model and the TCP/IP four layer model The OSI seven-layer model enables reliable communication between different networks of different systems through seven hierarchical structural models, so its main function is to

today's situation makes people sigh, things are not as I thought, school recruit failed, garbage Ann Chang, not keep the credit of CICC, did not receive any news. has transferred to the intern, the day after tomorrow has the opportunity to enter the