Dr. Bulk eMailer Pro
Dr. Bulk eMailer (pro) Support multi-threads multiple-SMTP, BCC and Direct (DNS) send methods , providing high speed sending text/html messages, Also support multiple subjects / reply emails . Send bulk email messages with this cool, easy to use and powerful program. ... Bulk eMailer (pro) has the ability to reconnect with the mail server if the server has disconnected and continue the delivery at the point where it has been interrupted. ... Bulk eMailer (pro) provides direct sending, bypassing the ISP mail services.
http://hotftp.hinet.net/files/apps/02apps/DrBulkEMailerSetup.exe - 2Mb - Download - Screenshot

Mail Server Pro
Mail Server Pro is a bullet-proof SMTP POP3 server software used by corporations and Internet Service Providers as an ultra fast and reliable mail server. It is simple but powerful; it has a lot of security features and options to prevent DDoS attacks and block SPAM. ... Using Mail Server Pro, you will never encounter a sending problem wherever you connect your PC to a network or phone socket. ... The SMTP and POP3 services work as NT services therefore they will keep working in the logoff mode.
http://www.getfreefile.com/download/mlsrvpro.zip - 2Mb - Download - Screenshot

Courier Mail Server
Courier Mail Server is a e-mail server. Compact, easy to configure and usage, multithreaded, contains Web server. It will help you to quickly arrange e-mail exchange in local network and Internet.
http://www.courierms.net/download/cms203.zip - 550Kb - Download - Screenshot

Best Mail Server
Best Mail Server is an ultra fast mail server program. You can send mail from any mail client that is complaint with SMTP protocol using this server. 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... 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 are built into the server. ... SMTP and POP3 servers work as NT services therefore they will keep working in the logoff mode.
http://www.softheap.com/download/bestmailsrv.zip - 3Mb - Download - Screenshot

Netoscope
In an age where even a temporary malfunction of a web site or a mail server means loss of business, productivity, or communication, it is important to make sure that your Internet services are running around the clock. The ability to be notified when such services fail is just as important to... Netoscope is a simple and effective tool to monitor Internet services such as web, ftp, or mail servers. ... Netoscope provides several ways to respond to failed services. ... E-mail notifications can be used to inform a wider range of remote operators.
http://www.basta.com/Software/SetupNetoscope.exe - 479Kb - Download - Screenshot

Gattaca Server
Gattaca Server - solution for the organization internal or external e-post service for the central or regional office. Gattaca Server full featured, 100 % compatible to existing standards POP3 and SMTP mail server. You can use it not only as an internal server, but also as a server for reception... Gattaca Mail Server working as service under control of operational system Microsoft Windows NT/2000/XP/2003. ... During work Gattaca Server automatically update white list, by additing e-mail addresses which is sending e-mails.
http://www.gattaca-server.com/geeos/bin/geeos114.zip - 3Mb - Download - Screenshot

Enterprise Mail Server
Enterprise Mail Server is a high-performance SMTP POP3 server program designed for large enterprises and Internet Service Providers where having an ultra fast and reliable mail server is vital. It can be used along with virtually any mailer or email program; it is simple, light-weight, powerful... Using Enterprise Mail Server, you will never encounter a sending problem wherever you connect your PC to a network or phone socket. ... This will give you an ability to manage all your servers from a single PC where only the user interface of Enterprise Mail Server is installed.
http://www.emailarms.com/downloads/zip/entersmtp.zip - 2Mb - Download - Screenshot

Servers Alive
Servers Alive is your 24/7 automatic server monitoring solution for guarding against server and process failures or attack. Script your own tests plus use our built-in functionality to automatically monitor critical server functions and processes including: PING (ICMP/TCP and IPX), TCP Services,... Choose one or more of these notification methods: SMTP Mail, Cell Phone Messaging, Paging, E-Mail, Instant Messenger, ICQ, XMPP,Pop-Up Message, NotePager. ... Discover why Servers Alive is the preferred server monitoring solution for compananies and organizations of all sizes.
http://www.woodstone.nu/soft/salive.exe - 12Mb - Download - Screenshot

Autoroute SMTP
Autoroute SMTP (ARS) is designed for automatic switching between SMTP servers depending on what network you are currently working in. E. g. you have two Internet service providers - FIRST and SECOND. Normally, IP address authorisation is used for SMTP servers, therefore when you are connected to... Normally, in that situation user has to get a e-mail address from a free mail server and use its SMTP server to deliver mail, though server of ones ISP ensures much faster and more convenient delivery.
http://www.mailutilities.com/ars/ars.zip - 111Kb - Download - Screenshot

Complete Mail Server
Complete Mail Server is high-performance professional SMTP/POP3 server software engineered for corporations and ISPs to satisfy business needs in ultra fast, flexible and reliable mail server. It works along with any email program or mailer and offers a lot of security features and options to... In case of parallel mail processing, Complete Mail Server can be installed on several computers while the common message queue and user mailboxes can be kept on separate dedicated computers. ... The SMTP Gateway Servers is another significant feature that makes Complete Mail Server just perfect for...
http://www.softfolder.com/download/cmailsrv.zip - 2Mb - Download - Screenshot