How to select a mail server

At present, the market has a variety of Internet Mail server products to choose from, these mail server product prices vary, the functionality provided by a number of differences. For network administrators, how to choose a full-featured and reasonably priced mail server product according to their own business needs is a comprehensive decision-making problem with many factors. When you select a mail server, although there are many factors to consider, the main focus should be on the product's system support capabilities, service agreement support capabilities, multi-mail server support capabilities, user management capabilities, mailbox management capabilities, client software support capabilities, communication capabilities, security protection capabilities, system management capabilities, version, Price, Upgrade and after-sales service, such as the following 12 factors.

First, the system support ability

Regardless of the computer product you choose, the system's support capabilities are the first issues to be considered, such as hardware products, as well as software products. For the mail server, the following three questions should be examined in terms of system support capabilities:

1 server running platform support capability

For a software server product, the support ability of its running platform is nothing more than single platform and cross-platform two kinds. If a network administrator manages a network that supports multiple operating systems and has multiple, separately managed mail servers, it is advisable to consider cross-platform products when it is convenient for each mail server to work together and unify management. Otherwise, you can consider only products that meet the platform you are using.

2) Business processing capacity

Some mail server products are often divided into Enterprise version and standard version, the price of the two products vary greatly. The former is mainly for users with a large number of users and many businesses need to deal with the use of groups, the latter for small and medium-sized groups of users.

3) System processing capacity

The system processing ability of the mail server refers to its ability of information processing using the system hardware platform and software platform. For server platforms that support multiple CPUs, some mail servers can now set the number of processes in the system, the number of client connections allowed per process, and the number of threads allowed per process.

4 Load Balancing support capability

In order to meet the needs of the expansion of the user business, some mail server products also have a certain degree of the same platform under the multi-server load balancing support capabilities. In this mode of operation, the network administrator can add the mail server at any time according to the growth of the business demand, and after the proper system configuration, can let many servers share the mail business processing work.

Second, the service agreement support ability

The mail server is one kind of Internet Network Service software PRODUCT, but supports the Internet many network service is the various service agreements. When choosing a mail server product, it is important to measure the performance of a product by examining its ability to support service agreements.

The Network service agreements associated with mail server products are mainly 6:

1) SMTP protocol

The SMTP protocol is an abbreviation for a Simple Mail Transfer Protocol (easy Mail Transfer Protocol). This is the earliest and most basic Internet Mail Service protocol that is commonly used.

2) POP3 Agreement

The POP protocol is the abbreviation for the Post Office Protocol (PROTOCOL), which is a protocol that allows users to send and receive mail from a mail server. Combined with the SMTP protocol, POP3 is currently the most commonly used e-mail service protocol.