post office protocol

In daily life, correspondence is an indispensable part of our daily life. With the popularity of the Internet, the Internet version of traditional mail-email has gradually entered our life and work. When we receive regular emails on weekdays, we

1. Additional knowledge(1) What are POP3 and SMTP servers?To put it simply, POP3 is used to receive emails, and SMTP is used to send emails.(1) What does POP3 mean?POP3 (Post Office Protocol 3) is the 3rd version of the Post Office Protocol. It

Article Title: explains how to install pop3 in CentOS. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. POP3

C # basics-POP3-based Mail receiving and STMP-based mail sending, Recently, emails are synchronized with outlook. I am interested in the email protocol. So I collected some information and learned how to use. net to send and receive emails. 　　 I.

I. Related concepts of e-mailMail protocol. Mainly include:SMTP protocol: Simple Mail Transfer Protocol, which is simply a message transfer protocol for sending e-mailPOP3 protocol: Post Office Protocol 3, a third version of the Post Office Protocol,

Configure postfix email in Centos Environment I. Basic concepts of mail 1. Email Service Agreement:A) SMTP: Slmple Mail Tansfer Protocol (Simple Mail Transfer Protocol) Port: 25 (sent)ESMTP: Extended (check can be implemented)B) POP3: Post Office

POP3 POP3It is short for Post Office Protocol 3, which is the 3rd version of the Post Office Protocol. It specifies how to connect a personal computer to an Internet Mail Server and download an email protocol. It is the first offline protocol

Layer in Internet protocol stack People have already discussed how to map TCP/IP reference models to OSI models. Because TCP/IP and OSI model groups cannot exactly match, there is no correct answer yet. In addition, the lower layer of the OSI model

Keyword: VC ++ SMTP protocol Email Delivery analysis this article introduces a method to implement Email Delivery in a program using SMTP protocol specifications and using SMTP protocol commands directly. Some key implementation code is provided in

1. Port 21:Port Description: port 21 is mainly used for FTP (File Transfer Protocol) services. Suggestion: Some FTP servers can be used by hackers to log on anonymously. In addition, port 21 will be used by some Trojans, such as Blade Runner, FTP

I. First, let's take a look at the POP3 protocol: POP3 (Post Office Protocol 3) is the 3rd version of the Post Office Protocol. It specifies how a personal computer connects to the mail server on the Internet to send and receive mail. It is the

I have been studying linux for a long time and have written something for everyone to share. To receive SMTP emails from the network, we must run the Sendmail daemon on Linux. The following are specific commands and implementations. For convenience,

This article mainly describes the programming of sending mail based on C # network programming. The mail sending function is based on the mail protocol. Common e-mail protocols include SMTP (Simple Mail Transfer Protocol) POP3 (Post Office Protocol),

Application Layer 1. The only user-oriented layer provides users with frequently-used services 1) email 2) www 3) QQ ...... there are many more 2. common protocols: 1) Hypertext Transfer protocol HTTP 2) File Transfer Protocol FTP 3) Simple Mail

How to find the opened port and how to close the port The computer "Port" is an English port translation, which can be considered as an exit for communication between the computer and the outside world. The ports in the hardware field are also

Which Address Resolution Protocol (ARP) Address Resolution protocols are commonly used to map the physical Address of a computer and the network Address temporarily specified. At startup, it selects a protocol (Network Layer) Address and checks

In terms of email, POP and IMAP are the most famous protocols. I don't need to talk about the POP protocol. Many users will be familiar with this protocol when setting some mailbox binding functions. Some friends may not understand the IMAP protocol.

Analysis of TCP, IMAP & POP and other protocol functions TCP/IP is a communication protocol for the Internet. Www.2cto.com TCP/IP is the communication protocol of the Internet. A communication protocol is a description of the rules that computers

Description of some network protocols DICT: a dictionary server protocol. Dict servers and clients use TCP port 2628 FILE: Mainly used to access files on local computers, just like opening a file in Windows Explorer. FTP: (File Transfer Protocol,

POP3POP3 is the abbreviation for post Office Protocol 3, the 3rd version of the Post Office Protocol, which specifies how to connect personal computers to the Internet's mail servers and electronic protocols for downloading e-mail. It is the first