RevilloC MailServer
Send and collect all the emails for your home or office network, whilst saving dial up time. The mail server now contains a web proxy server, so you can now view internet web pages from your networked machines. The mailserver is designed to collect all your emails in one dial up connection. ... This mail server is a fully featured SMTP and POP3 server with unlimited connections or accounts, with ease of use being a priority. ... The mail server will work as a standalone server on a shared PC or as a network mailserver.
http://www.revilloc.com/mailserver/mailserver.zip - 5Mb - Download - Screenshot

Express Plus
Business email client with mail-merging for bulk personalized mailings and powerful Bayesian mail filtering to learn what messages you consider to be spam and keep them out of your inbox. Express Plus does not use a database to hold your messages, but instead stores each message as a unique... It supports multiple e-mail accounts in one mailbox, has the ability to read messages live on your server without downloading (using a feature called Server Headers), provides easy access to reading email headers, plain text version, html version, or the attachment list of an email, supports POP3,...
http://www.ChaosSoftware.com/programs/expressplus/expressplussetup.exe - 3Mb - Download - Screenshot

MidPoint Plus 6-User Edition
Sets a new standard for Internet Sharing. With one simple software installation, you'll immediately have simultaneous connections, faster downloads, connection teaming, user managment and accounting, site blocking & content control (PICS, VCR), ultra secure firewall, global caching, and much more. ... Proxy and NAT technologies ensure support for your Internet applications while MidPoint's integrated e-mail server puts you in control of your company e-mail by providing unlimited personal mailboxes, scheduled operation, internal mailing, e-mail forwarding and mail filtering.
ftp://ftp.midpoint.com/pub/download/midpoint.zip - 10Mb - Download

GroupWare
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...
http://files.altn.com/GroupWare/Release/gw107_en.exe - 2Mb - Download - Screenshot

MAPILab Share`n`Sync
MAPILab Share`n`Sync is designed to solve two tasks - synchronizing Outlook folders on several computers and organizing shared access to Microsoft Outlook folders for small companies. The product supports all types of Microsoft Outlook folders and items - email messages, contacts, notes,... The product is fully compatible with Microsoft Exchange Server and Microsoft Small Business Server. ... Actually, computers exchange data by e-mail. ... Their program recognizes the special message containing the data (if the folders are synchronized through e-mail) and updates the item transparently to...
http://www.mapilab.com/files/share_sync.zip - 3Mb - Download - Screenshot

602LAN SUITE
602LAN SUITE is an easy-to-install and manage all-in-one network software suite providing secure e-mail services with anti-virus & anti-spam, fax support, built-in firewall with NAT and web content filter proxy for controlled Internet sharing. Combine the content based Bayesian antispam filter,... An integrated fax server provides unified access to faxes and e-mail. ... The standards-based SSL SMTP/POP3 e-mail server provides secure encrypted communication. ... The integrated Web server provides access to the Web mail client, shared address book, remote administration and user home pages.
http://download2.software602.com/ls2004.exe - 16Mb - Download - Screenshot

GetByMail
With GetByMail you can stay at home and have access to your office computer and vice versa simply through your e-mail account. You can get remote directory listings and tree view, download/upload files and directories, perform change dir, make dir, rename and delete operations, capture remote... Most popular Internet E-mail (POP3/SMTP) and Microsoft Exchange Server e-mail configurations are supported. ... GetByMail gives you a unique ability to share files on your computer with other people simply through e-mail.
http://www.getbymail.com/en/download/bin/gbm.exe - 2Mb - Download - Screenshot

Proxy-Pro Family GateKeeper
Proxy-Pro Family GateKeeper is a proxy server firewall that allows you to share, secure and accelerate your Internet connection. Developed especially for home or small office use Proxy-Pro Family GateKeeper allows you to connect your entire network to the same Internet Connection thus giving you... Features: Share one Internet connection, Proxy Server, Firewall, Automatic Client Configuration, Easy to configure and manage, Auditing/Logging, Dial on demand/Auto disconnect, Access Restrictions, Parental Control, Remote Administration, Statistics, Accelerate Your Internet Connection, Safe...
http://proxy-pro.com/files/ProxyProFamily.exe - 6b - Download - Screenshot

MAPILab NNTP for Outlook
MAPILab NNTP allows you to read and post messages to newsgroups from Microsoft Outlook 2000, 2002/XP and 2003. This product is a full-function MAPI transport. This means that a news server account works in the same way as an account for Microsoft Exchange Server or a POP3/SMTP account, supports... ) Microsoft Exchange Server and can be used to share newsgroups for coworkers through public folders. ... It is fully compatible with (but doesn't require! ... MAPILab NNTP for Outlook supports all messages formats (plain text, RTF, HTML) and encodings which are supported by Microsoft Outlook.
http://www.mapilab.com/files/outlook_nntp.zip - 5Mb - Download - Screenshot

MDaemon
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;... The speed boosts affect the Content Filter, AntiSpam and AntiVirus engines, plus the IMAP server; HTML optimization increases the speed of the WorldClient web mail service; free/busy server to help with scheduling meetings is a major groupware addition; new interface for the Pocket PC provides...
http://files.altn.com/MDaemon/Release/md901_en.exe - 16Mb - Download - Screenshot