PEN - Pennock's Email Notifier   
http://www.pennock.nl

PEN is an easy to use, easy to setup Email Notifier that sits in your SysTray and pops up a small non-intrusive window and/or play a sound whenever new email arrives in your mailbox. You can choose between different pop-up styles or create your own. PEN supports an unlimited amount of POP3 (even over SSL) as well as IMAP, AOL, Excite, Gmail, Hotmail, Netscape, Lycos, Mail.com, MSN & Yahoo webbased mailboxes. You can preview subjects or preview the mail itself. Unwanted email can be deleted immediately, without having to start your email program. PEN also checks for updates automatically and notifies the user if a new version is available. Simple Junk-mail detection is also available.

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.

Pop3Hot   
http://www.izysoft.com

The Pop3Hot gateway application is an innovative new solution to access AOL, MSN, Hotmail or Yahoo from any e-mail application or utility, allowing users to complement the conventional browser interface with alternate e-mail applications, automated rule processing, advanced anti-virus or spam protection tools. Designed as a native Windows service application, Pop3Hot operates equally well for users with a single computer, in a small home network, on an organizational's network, or a public server. Pop3Hot complements and extends the AOL, MSN, Hotmail or Yahoo browser interface with the capabilities of popular e-mail applications like Outlook, Eudora, IncrediMail, TheBat as well as specialized tools like SpamKiller, PDAs or handheld computers. Pop3Hot supports sending and receiving of AOL, MSN, Hotmail or Yahoo over the standard Internet protocols POP3 and SMTP. A unique capability of Pop3Hot is the IMAP4 interface for true message synchronization and full folder support. By using Pop3Hot's IMAP interface, users can achieve true synchronization of all email with multiple applications and from multiple workplaces. In a typical scenario, users might be using MS Outlook in their office; on the road, they might be using a laptop or Pocket PC for a quick check without the risk of creating multiple, unsynchronized copies of incoming messages. Pop3Hot helps users during the transition from other providers. The supported Internet standard protocols facilitate continued use of all application they have learned to know over the years. Although Pop3Hot does not perform any rules processing on its own, it enables to use the rules and filter engines which are built into many other applications, thus complementing AOL, MSN, Hotmail or Yahoo's basic spam filter mechanism. Users can guard themselves against being sent damaging code in e-mail by setting appropriate security levels in their application.

CARTHAGO Groupware   
http://www.atrium-software.com

CARTHAGO Groupware 2005 is a application server for MS Windows platforms to manage email, contacts, groups, appointments and tasks using a standard web browser. Through a regular webserver, you have access to your personal data from everywhere in the worldwide internet. All data is stored in a SQL database and is available very fast. Each user has his personal address book and appointment calendar. Existing MS Outlook or Outlook Express contacts can be imported easily with the build-in import feature. Special groupware features allow multiple users inside the domain to share contacts and appointments. Received messages can be clearly arranged with message folders. Each user can decide from which originators he wants to receive messages using his personal anti spam list. A build-in auto responder responds to incoming messages with predefined text templates. CARTHAGO supports international domain names (IDN) and is thus also suitable for email addresses with special characters, without the need of a special conversion tool. Layout and language of the user interface can selected by each user himself. System administrators can change server settings, edit domain and user accounts and view active sessions using the web based configuration menu. A detailed event log shows information about all user activities. CARTHAGO Groupware 2005 contains a ISAPI interface and can be integrated in almost every webserver with ISAPI support. The open database interface allows the usage of different kinds of database systems to store the data.

Ability Mail Server   
http://www.code-crafters.com

Ability Mail Server is an advanced, secure and high performing mail server. Featuring SMTP, POP3, IMAP4, WebMail, Remote Admin, LDAP, SSL, SPAM Protection with Bayesian and RBL filters, Antivirus Protection, Content Filtering, POP3 retrievals, ODBC, mailing lists, static routing, aliases, redirections, auto-responses, multiple folders, address books and much more. Combines maximum functionality with ease of use.