I. PrefaceIi. Basic Knowledge1. What is an IP address?2. What is a fixed IP address?3. What is a dynamic IP address?4. What is a domain name? What makes a domain name?5. What are subdomain names and second-level domain names?6. What is DNS?7. What
The development of modern Internet poses a great challenge to traditional mail services. At present, it is believed that few paper-based letters are circulating with each other. We will all use emails. In this section, we will introduce the IMAP4
SMTP Protocol Introduction
1. IntroductionSMTP is called Simple Mail transmission protocol (Simple Mail Transfer Protocal). It aims to provide efficient and reliable mail Transmission for users.. An important feature of SMTP is
Basic IntroductionAJAX refers to asynchronous JavaScript and XML (asynchronous JavaScript and XML).Domestic translation is often the same as "Ajax" and the Ajax football team. Web App interactions such as Flickr,backpack and Google have made a
Are youIs Microsoft Exchange Email Server Are you upset about overspending? Linux and Free/open Source code The world is strong enough, and there are many good open-source products that can replace Microsoft Exchange, and will not let your bank
Article title: soft Linux mail system solution. 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.
Soft Linux
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
One, the e-mail system consists of five parts:
MUA ( Mail User Agent ) Mail User agent
mua
Common tools: foxmail , outlook , webmail , mail Command and so on. Send mail using protocol: smtp
SMTP (Simple Mail Transfer Protocol)SMPTD:TCP 25 service side.SMTP: Client. Random port, usually greater than 5000SMTP Status code:1XX Pure Information2xx correct3xx previous action not completed, to be added later4xx transient Error5XX Permanent
The main performance parameters of the mail server should include: SMTP letter efficiency, POP3 efficiency, e-mail efficiency under Web mail, mail Server message forwarding efficiency, and so on. Here are a few of the major factors that we consider
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