For normal operation of Courier Mail Server the computer on that it will be installed, should have:
- Operating system: Microsoft Windows 2000/XP/2003/Vista/2008/7;
- Free space on the hard drive. For the programm 2 MB. For messages store, logs and other data is recommended at least 1 GB;
- Installed TCP/IP network protocol;
- Internet connection (optional, can use only local network).
Computers that will handle with e-mail through CMS shall have network protocol TCP/IP and mail clients using protocols SMTP and POP3 installed (The Bat!, Outlook Express or similar).