Setup your own office email server

Offices with more than 5 people can benefit from having their own email server rather than using an Internet service providers email service. Interoffice email becomes much faster and does not leave the building. This ensures a greater degree of privacy, and better performance over an Internet hosted solution.

  1. You will need a fixed IP address from your Internet service provider. Internet service providers usually provide dynamic IP addresses by default.
  2. a registered domain name.
  3. The mail record (MX Record) for the mail server must point to a name that accesses the server.
  4. Port 25 (SMTP incoming mail) and port 110 (POP3 retrieve mail) must be open on the firewall to incoming connections over the firewall. Most servers open a second port for incoming mail to allow mail sending from home. Many Internet service providers block port 25 outgoing to prevent infectected computers from distributing spam. The second port allows those users to upload mail to the server.
  5. A reverse DNS entry is desired since the domain for an IP address is often used to help identify sources of spam. Your Internet service provider ( not usually the company you used to register you domain name) will need to set this.
  6. Hardware sizing depends on expected volume. You do not need a server operating system. Windows XP Windows Vista, or Windows 7 ( 32 bit or 64 bit) will do nicely. We prefer versions that support remote desktop which allows support of the server remotely. 1 gigabyte of memory minimum is needed for 32 bit systems, and 2 gigabytes is the recommended minimum for 64 bit systems. A high performance system would be 64 bit quad core CPU with 6 gigabytes of RAM and at least 3 physical drives, one for the operating system, one for the mail queue, one for userís mail.