Кратко: Fast and secure SMTP/POP3 server. Lots of features against spam and DDo.
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. Its unique blend of features allows you to send mail from any mail client that is complaint with SMTP protocol. You can also configure it to be your local mail server. It will accept mail on behalf of your users and store it, until your users will retrieve it using POP3. This server can be used along with virtually any mailer or email program. 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 SPAM and spammers. 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 still be able to send it using one of the gateways. You can also create multiple parameterized mailing lists that will allow you to send messages to many recipients at once and even customize your message with substituted parameters.