Best SMTP Server is a high-performance SMTP/POP3 server program. It can be used as a local POP3/SMTP server for your corporation or as a desktop application on your laptop. It will accept mail on behalf of your users and store it, until your users will retrieve it using POP3. Our main purpose in developing this server was to deliver the easiest possible configuration, while allowing you to be able to tweak any advanced features you want. We have completely redesigned the internal engine of the server, and made every possible effort to make it as fast and robust as possible. This way you will be able to concentrate on your day to day tasks instead of trying to tweak your mail server. This server can be used along with virtually any mailer or email client program that is compliant with SMTP protocol. It is simple, light-weight, powerful and absolutely bullet-proof. It has a lot of security features and options that allow you to protect the server from DDoS attacks as well as safely block most of the SPAM and spammers. SMTP and POP3 servers work as NT services therefore they will keep working even when no users are logged in. For software debugging and testing purposes, the program has a testing mode you can use to check if your email clients work correctly. All messages will be accepted, but will not be sent further. They will be immediately discarded so that you can check if your mail client works correctly according to SMTP protocol. You can have multiple SMTP gateways in your server if you travel a lot with your laptop. This way, even if you cannot deliver your email directly to the destination, you will be able to still send it using one of the gateways. Newly added feature is advanced, parameterized mailing list management. This is not present in any of the other SMTP servers. Using this feature you can actually use this server as a mass mailer. You can create as many parameterized mailing lists as you like and customize each message that is sent to the member of the mailing list with up to 50 string parameters.

Best SMTP Server offers the following features:
Local and Internet delivery of email messages for your users.
Easy and intuitive configuration without lots of complicated configuration files. Everything is configured through the standalone GUI interface.
Works well as corporate server and as a personal SMTP relay that you can take with you on the road. No need to reconfigure.
Delivers email directly or using a gateway in cases where direct delivery is not possible.
High-performance multithreaded engine for mail sending and mail receiving.
Anti-spam and anti-DDoS attack prevention mechanism built into the server.
Encryption of messages in the message queue and in local user's directories for added protection of privacy.