What is Email Hosting?

The electronic mail system (Electronic mail system, E-mail) consists of a user agent MUA (Mail User Agent) and a mail transfer agent MTA (Mail Transfer Agent), and a mail delivery agent MDA (Mail Delivery Agent). MTA refers to the program that forwards the letter from MUA to the designated user. MDA is to place the letter received by the MTA into the mail file under the local account (inbox) ), When a user sends a message from the MUA, the message is sent to the MTA, and then forwarded in a series of MTA until it reaches the final sending destination.

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The way email systems work is fundamentally different from other web applications. In most other web applications,

Different operating systems are used by enterprises. When deploying mail systems, it is inevitable to encounter problems with the system platform. In addition to the well-known Windows / Linux, there are various operating systems such as FreeBSD / Solaris / AIX / HP-UX. When deploying an email system, we must consider the issue of multi-platform conversion. It is important to find a cross-platform email system, such as domestic

The development of the mail system architecture can be roughly divided into three stages. Tomlinson sends an email. How does he do it? How does the software do it?

User login

System functions

Pop3, Imap Pop3 over ssl, multi-domain name, multi-mailbox aggregation, domain alias support, hierarchical management, traffic analysis, domain space limitation, spam filtering, support for distributed, Smtp, Smtp authentication, Smtp over ssl, web ssl, online Antivirus

Management functions

Based on WEB management, LOGO settings, mail data backup, content management, mail search sorting, user data backup, statistical traffic, detailed logs, log management, administrator management management, management architecture, user management, user import and export, batch user management, Mailing list management (system level), bulletin board management, service process monitoring, startup and shutdown services, system status monitoring, multiple domain name management, limit on the number of one-time sending letters, address book management

User functions

Address book, multi-account management, account password box, one pop3 letter, schedule management, personalized signature, video mail, find email, client anti-virus settings, client anti-spam settings, password modification, mail folder management, voice mail

With the rapid and widespread application of the Internet, the business communication of various enterprises is increasingly relying on network communications, and the email system has become a mainstream application of enterprises. Due to

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The mail system is an indispensable communication software in the process of enterprise informationization. Generally, enterprises can adopt a variety of solutions such as self-construction, rental, and cloud deployment. No matter which solution is adopted, the email system is used to provide email communication for employees and external customers Service is its basic function. On the basis of basic functions, it achieves advanced corporate information communication functions such as online meetings, personal / project-level instant messaging, remote presentations, schedule sharing management, and Internet telephony. The establishment of a unified corporate communication platform is the long-term goal of the corporate email system. The most advanced email The system software has achieved this goal, and domestic products are mainly concentrated in the mail function ^[2] .