Tunnelier
Free for individual use, Tunnelier is a fast, robust, easy to use SSH client for Windows (all versions) with an advanced graphical SFTP file transfer client; VT100, xterm and bvterm terminal console; scriptable console-mode clients for SFTP, terminal console and remote execution; flexible TCP/IP... Supports public key user authentication, as well as transparent authentication with Kerberos (GSSAPI) or NTLM. ... Tunnelier supports all SSH servers, but it is most powerful when connecting to Bitvise WinSSHD.
http://www.bitvise.com/downloads/Tunnelier-Inst.exe - 4Mb - Download - Screenshot

TestMailer
Test Mailer enables you to quickly send an email and monitor or debug all communication with the recipient mail server. There is no need for a smtp server, Test Mailer will act as a mail server itself and lookup the MX records for the recipient. Use the advanced options to create special... - Verify the authentication and methods for authentication with a mail server. ... Key features: - Automatic lookup for MX records. ... - Debug any spam or virus filters that might reject a message in special circumstances.
http://www.digiarch.org/download/testmailer.zip - 1Mb - Download - Screenshot

VShell Server for UNIX
VShell 2. 6 Secure Shell server for Windows and UNIX is a secure alternative to Telnet and FTP that gives you the strong encryption, trusted authentication, and data integrity you need to securely access network resources and transfer data. VShell is simple to install and set up, enabling you to... VShell's extensive configuration options and trusted authentication methods give you the right balance between protecting your network and providing your employees and customers with access to the data they need.
http://www.vandyke.com/download/vshell/index.html?id=pmx - 4Mb - Download - Screenshot

VShell Server for Windows
VShell 2. 6 Secure Shell server for Windows and UNIX is a secure alternative to Telnet and FTP that gives you the strong encryption, trusted authentication, and data integrity you need to securely access network resources and transfer data. VShell is simple to install and set up, enabling you to... VShell's extensive configuration options and trusted authentication methods give you the right balance between protecting your network and providing your employees and customers with access to the data they need.
http://www.vandyke.com/download/vshell/index.html?id=pmx - 8Mb - Download - Screenshot

Core FTP Server
Core FTP Server - secure FTP server with SSL/TLS/FTPS, SSH/SFTP support virtual paths, access rules, certificate authentication and much more... Easy, quick setup allows you to start sharing your files in minutes!
http://www.coreftp.com/server/download/Server.exe - 2Mb - Download - Screenshot

SSHBlackbox (.NET)
SSHBlackbox . NET Edition is a comprehensive collection of managed components that add client-side and server-side support for SSH (Secure Shell) to your . NET Framework applications. SSHBlackbox. NET includes complete SSH protocol support and supports full range of SSH and SFTP features, such... shell, command, X11, port forwarding, custom tunnels; * support for SSH 1 (client only) and SSH 2 (client and server); * various authentication types including authentication with X. ... 1 or 2. ... NET Framework 1.
http://www.eldos.com/files/sbb/secbboxnet.zip - 9Mb - Download

Minimail
Minimail is a small, easy to use email composer and sender. It provides a quick and easy way to write and send emails without the need to open your bulky, full-featured email client. Features include: file attachments, multiple accounts, signatures, logging, SMTP authentication, undo and redo,...
http://www.pawsoft.com/files/minimail.exe - 147Kb - Download - Screenshot

MailMonitor
MailMonitor is a program enabling you to monitor incoming and outgoing mail traffic to and from you mail server and clients. It tracks, displays and logs incoming and outgoing SMTP sessions, POP sessions and sent and received e-mails. It can store incoming and outgoing e-mail in a separate... Monitor POP authentication. ... Monitor SMTP authentication with IP, username and password. ... Scan for mail errors and abnormalities. ... Store every e-mail passing your server. ... See a complete packet level trace of e-mail traffic only.
http://www.digiarch.org/download/mailmonitor.zip - 2Mb - Download - Screenshot

LiteMail
LiteMail is an easy to use mail server that includes unlimited addresses, unlimited domains, forwarding, relaying, SMTP Authentication, a catch-all address and quotas. Integrated DynDNS and No-Ip dynamic DNS clients help make LiteMail a complete and convenient server solution. ... The administrator is given a precise log of everything that occurs and has the ability to monitor and kill connections.
http://www.cmfperception.com/litemail/plm2_6.exe - 1Mb - Download - Screenshot

SFTPBlackbox (.NET)
SFTPBlackbox . NET Edition is a comprehensive collection of managed components that add add client-side and server-side support for SFTP (Secure File Transfer Protocol) to your . NET Framework applications. SFTPBlackbox. NET includes complete SSH / SFTP protocol support and supports full range... 0, Mono (1. ... 1 or 2. ... NET Framework 1. ... 0 or 2. ... It requires . ... NET CF (1. ... 0) or . ... 0). ... NET edition, which can be integrated into Visual Studio 2003, Visual Studio 2005 , Borland Delphi 8 and Delphi 2005-2006 /.
http://www.eldos.com/files/sbb/secbboxnet.zip - 9Mb - Download