SmarterMail 5.x Help
This documentation is for a product that is no longer supported by SmarterTools.

SmarterMail Server Requirements

The requirements of SmarterMail are minimal, so that SmarterMail can coexist with other applications on the same server. Below you will find the minimal requirements and a sample installation which may help you decide how much your hardware can process.

Minimum Requirements

  • Windows 2000, Windows XP*, or Windows 2003, Windows 2008, Vista*
  • RAM: 512MB
  • CPU: 1 GHz Processor or higher
  • DISK: 150 Megs
  • IIS 5 or higher (Required if you will not use the SmarterMail Web Server)
  • .Net 2.0 Framework

* Non server based Microsoft operating systems limit the maximum number of inbound connections to ten. For more information regarding this issue, refer to the links below.
Windows XP Pro EULA   |   Vista EULA

It is suggested customers use IIS in place of the SmarterMail Web Server to provide additional security and stability. The SmarterMail Web Server simply allows the product to be fully functional without the existence of a third-party web server. IIS, on the other hand, is an enterprise level web server and when paired with SmarterMail, will provide the highest performance. For more information in using IIS to host the web interface, please see Converting to IIS.

NOTE: All installations are different and extra load caused by excessive messages or email accounts may skew the server requirements. SmarterTools recommends adding domains slowly to the server once you get close to these limits and watching how they impact your server. Also, it is important to realize that email patterns indicate that email messages per account are increasing roughly 60% every two years. Keep this growth in mind when planning your rollout.

Sample Installations

Domains Users Messages
per Day
500 3,000 250,000
  • Windows 2000 or higher
  • CPU: Dual P3
  • RAM: 512 MB
5,000 30,000 1,000,000
  • Windows 2003
  • CPU: Dual Xeon
  • RAM: 2.0 GB
Gateway N/A 2,000,000
  • Windows 2003
  • CPU: Dual Xeon
  • RAM: 1.0 GB