GroupWare   
http://www.altn.com

MDaemon GroupWare unlocks the collaborative functions of Microsoft Outlook using MDaemon as the mail server platform. Outlook users can share Calendar, Tasks, Contacts, Notes, and Journal folders without the expense or expertise required by Microsoft Exchange Server. Features include user configurable permissions where GroupWare users has control over the permissions of which folder(s) they wish to share with other users, WorldClient (MDaemon's web-based email client) will allow you to see items in your Outlook calendar from anywhere, and GroupWare licensing is independent of your MDaemon license size.

MDaemon   
http://www.altn.com

MDaemon , Windows-based email server software, contains full mail server functionality and control with a strong emphasis on security to protect your email communication needs. MDaemon features include top-notch antispam security features; seamless integration with AntiVirus for MDaemon plug-in; built-in groupware functionalities for sharing folders, tasks, contacts, and address; separately licensed plug-in for Outlook users to access groupware functionalities using MDaemon as the mail server and groupware platform; secure instant messaging; free web-based email client; remote administration tool; central address book repository; and much more! MDaemon 8.1 new feature includes the first implementation of DomainKeys Identified Mail (DKIM) for the Microsoft Windows platform. DKIM validates the sender address and message integrity of each email received. MDaemon creates outbound signatures and validates inbound messages signed with DKIM. Read Alt-N's published white paper on DKIM and its implementation in MDaemon at http://www.altn.com/support/white_papers.asp. In addition to DKIM, MDaemon 8.1 includes support for Greylisting, a relatively new spam fighting technique which involves deferring the initial acceptance of a new mail message from unknown senders and tells the sending email server to try again later. When the sending server tries a second time - which most spam sources will not do - MDaemon will accept it. Exception options and white lists can exempt trusted senders from greylist processing. MDaemon 8.1 builds on the groupware, security and administrative improvements made available with MDaemon 8.0. MDaemon now includes free groupware functions, including shared calendars, contacts and task lists. It also continues to lead the industry in email security, professional fine-tuning and beginner ease of use.

Autosend   
http://www.filesharingbyemail.com

Share files with your friends or with the entire world by email. Easy and safe ! Like a filesharing server (plenty of features) but through your regular email client. Emails are simple and easy to use, can go through firewalls. Accessible to everybody everywhere... Just configure a server with its own email address and people can ask you a file just by sending an email which subject is the filename of the desired file. The file is sent back as attachment. Share files with others or give you a remote control. Autosend adds a lot of features to let you control who can use your server and what to share. You can also share different things with different users, the soft can handle multiple servers. Two way communication is possible, people can ask for files or send some if you allow it. The servers can also answer to some commands: sending the list of shared files, upload a file, create a directory, find a file among all those shared, list of newly shared files, execute a command... Some tools are also available : logfile parser, split of big files into smaller pieces, send lists of shared files, dial-up launcher, automatic creation of an html file of all shared files, private messages to the system owner. All texts sent within the mails can be modified and Autosend user interface can be customized in your own language thanks to language packs. Now offers the support for plenty of nice skins.

A1Monitor Network Monitor TCP or Web   
http://www.alltracksgone.com

Monitor multiple web or TCP servers (http, https, ftp, pop3 etc.) Receive email notification by email or pager if any can't server can't be reached a number of times in a row. A1Monitor can reboot your NT server or run a batch file or program for you. Supports http, https, ping, ftp, telnet, pop3, smtp, dns, imap, dns, or any other TCP port you want. Monitor Ping requests to any IP address. Server response time graphs. Runs as an NT Service. Specify text you want A1Monitor to watch for. Email Notifications when servers go down and when they come back up. Reboot a local or remote computer when server failures occur. Run a batch file (*.bat) or .exe when server failures occur. Runs minimized in the system tray. Response data logs (failures etc.) Support for http proxy server for http and https monitoring. Supports URL basic authentication (http, https only).

Rapid-Emailer   
http://www.absolutefuturity.com

Fast email campaign manager. Anonymous Emailer with a Built-In SMTP Server. Duplicate address removal, send alternative HTML and Text formats, allows attachments and embedded images, allows you to put each user info in each email automatically, command Line support. pure header manipulation, very large email list support, overload protection, creates a failed and successful list. Easy resending of failed emails, free updates. Allows attachments, embedded images, HTML and Text alternative all within the same email.. Command Line support for sending Email Campaigns. Supports Embedded images. Multiple threads, sending up to 200 emails at the same time. Built-in SMTP Server Send personalized emails. Send multiple file attachments in MIME format. Alternative MIME format can send HTML and Text to allow email clients to choose which format. Include each recipients name, email address and number in the order sent into the body or subject of the message. Include random numbers, random letters, Date, Time and Campaign Name into the body or subject of the message. Can do an MX query and send email directly to recipients host. SMTP server support. SMTP Server overload protection. You can set the importance or priority of the emails. Large Email List capability. Very easy Wizard interface. Wildcard support in exclusion lists. You can save as many Email Campaigns as you like. All settings are stored for each campaign. Previous campaign can be recalled very easily. Email Campaigns can easily be backed up. Many types of Email Lists are supported. Send Attachments. You can track emails viewed by using code. You can track links viewed by using code. Creates a Failed recipient list. Creates a Successful recipient list. You can choose how many times to retry a failed send. One button to retry failed recipients. Status for each and every thread. Very fast emailing. Free updates. Easy to use and great looking interface