Features- Chipmailer Mail server for Windows

POP3 server.
SMTP server.
POP3 & SMTP authentication.
Multiple domains (with shared accounts)
Unlimited user accounts
Build-in Intelligent Spam Filter System
IP Whitelist to bypass spam filter.
Options to block spam with Block Mode or marked spam with Filter Mode.
IP Blacklist to block specific IP addresses.
Mail From Blacklist to block specific mail address of single users or specific domains (wildcards supported).
Support Alias Mail Forwarding: forward mail for single users or specific domains (wildcards supported).
Relaying messages using internal SMTP client with DNS support.
Support second DNS server for message relaying.
Message relaying with the option to forward a specific domain to a pre-defined mailserver.
Auto-retry for temporary failure.
Delivery Failure Notification.
Option to set failure retry times
Unlimited connections support, multithreading.
Unlimited user accounts.
Clear and easy user interface.
Real time server log (can also log to a logfile).
Build-in Mail Server Setup Wizard.
Build-in DNS lookup tool.
Build-in DNS entries and firewall diagnostic tool
Build-in Blacklists query tool.
Support relative path for mailboxes folder and trace log. That means you can put your mail server in your pocket.