The SMTP protocol requires that the MTA that receives the mail be responsible for sending the mail to the final destination, which may be the mailbox of the local system or other hosts on the same network, this process is called delivery ).
This
Before discussing the delivery process of local emails, let's clarify the definitions of "local", "foreign", and "virtual" emails and the related MDA.
PostfixShipping Agent
The postfix determines whether to accept the email Based on the email
Test of the Mail command under the Linux system1. One of the simplest examples:Mail-s test [email protected]r.comThe result of this command is to send an empty letter titled Test to the back of the mailbox, if you have an MTA and the back of the
IntroducedEach Linux program is an executable file that contains a list of opcode that the CPU will execute to accomplish certain operations. For example, the LS command is provided by the/bin/ls file, which contains a list of machine instructions
IntroducedEach Linux program is an executable file that contains a list of opcode that the CPU will execute to accomplish certain operations. For example, the LS command is provided by the/bin/ls file, which contains a list of machine instructions
Shell is an interface between the operating system and the user. It can explain the commands issued by the user, start the application, and use the system functions to manage user data. Shell can run multiple processes at the front end or backend
Introduction
Each LinuxProgramIt is an executable file that contains a list of operation codes. The CPU will execute these operation codes to complete specific operations. For example, the LS command is provided by the/bin/ls file. This file
Detect and confirm a new hard driveExecute the "fdisk-l" command to view and confirm the device name and location of the new drive.The purpose of the FDISK-L command is to list information about all hard disk devices and their partitions in the
The system provides the communication system between the users, when the user opens the terminal registers the login to discover the system to give the following information:
The code is as follows:
You have mail.
The user can then read the
The full name of IMAP is the Internet Message Access Protocol, a multi-mailbox e-mail system that was developed by Stanford University (Stanford University) in 1986, as an internetwork information access protocol. PHP provides functionality that is
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