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duminică, 19 februarie 2012

Choosing the Right Open Source Mail Server - The Strength of Postfix Vs Sendmail

Choosing the Right Open Source Mail Server - The Strength of Postfix Vs Sendmail

by Zack Springsteen

When we consider the suitable Open Source Mail Server for a business organisation, it depends on many factors. Below are some factors that you might need include in your studies:

A good track of security records
Good performance under high load
Hardware requirement
Flexible to interact with databases in many formats
Compatible to many SMTP variants in use
Easy to customized
Quality 3rd party plugins available
Quality documentation is available
Communities Support

Similar to Qmail MTA, Postfix is created by a modular design (similar to Qmail) rather than a monolithic design (such as Sendmail). This make Postfix to have various advantages or strength compared to Sendmail.

Below are some of reasons why some Email administrator prefer Postfix than other MTA system:

Flexibility

Due to Modular Design, Administrator can pick and choose what module to be activated. This feature not only just increase the performance but also tighten the security of Mail Server.

Performance

Postfix consumes less system resources than most other MTAs (or at least, with standard configurations). The minimalist design of Postfix Mail Server has make outstanding performance over many MTA.

Security

Postfix provides a better security than Sendmail. You can have a quick search on CERT Advisories and quickly turned up more than a dozen Sendmail incidents. The is because the services of Postfixis NOT executed as root services. This make it is the entire Operating System security more safer and harder to be compromised by hackers.

Another reason that makes Postfix more secure is because Postfix is only allows each process to use necessary rights to function, unnecessary rights are eliminated.

Other than that, Postfix Mail Server's processes are ONLY controlled and initiated by master daemon. It eliminated the risk of using child processes design when prompt to inter-process communication exploitation.

Ease of Administration

As compare to Sendmail, the configuration files on Postfix are far more easier to be configured.

Support Use of Milters

Postfix allow administrator to deploy 3rd party software to filter email from Postfix Mail Server to anti-virus and anti-spam filters. Administrators can integrate Postfix Mail Server with many quality 3rd party plugins.

Community Support and Documentations

There far more many community support forums, articles that share the knowledge of setting,performance tuning and troubleshooting of Postfix as compare to other Open Source mail servers.

<a href="http://www.firefoxbeta.org">Firefox Beta</a>

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