Chilkat WebMail ASP Email Component   
http://www.chilkatsoft.com

Powerful POP3/SMTP email client specifically tailored to be used in ASP websites. Features: Send Email (SMTP) Read Email (POP3) Attachments HTML Embedded Images Multipart/Alternative Multipart/Related S/MIME Signed Emails Encrypted Emails Export to XML Distribution Lists Save Attachments SMTP Auth Mail-Merge Filtering Headers Mailbox Management Server Diagnostics Forwarding Replying Return Receipt Charset Conversion

POPcon   
http://www.christensen-software.de

POPcon connects MS Exchange Server(TM) to one or more POP3 mailboxes. It acts as an e-mail gateway that retrieves messages from POP3 mailboxes and delivers them to your Microsoft Exchange Server mailboxes according to the intended user found in the mails. * NEW: Installs as a service (even on Win95/98) - no need for a user to be logged in. * Can be installed on same machine as MS Exchange Server(TM) - uses only one internet connection and one POP3 mailbox to receive mail for the whole workgroup or company. * Polls multiple POP3 mailboxes and distributes mail to your MS Exchange(TM) mail server. * Flexible scheduling for mail retrieval based on day of week. * Monitor POPcons actions from any system in your network using "POPcon Administrator" included with the software. * Poll private POP3 mailboxes and forward mail to a single MS Exchange(TM) mailbox or distribute mail collected in a single POP3 mailbox to multiple MS Exchange(TM) mailboxes according to user the mail was sent to. * NEW - now auto-filters duplicate mails sent to more than recipient

POPcon PRO   
http://www.christensen-software.de

POPcon PRO connects MS Exchange Server(tm) to POP3 and IMAP mailboxes. It acts as an e-mail collector that retrieves messages from POP3 mailboxes and delivers them to your Microsoft Exchange Server mailboxes according to the intended user found in the mails. POPcon offers the following features: * Poll private POP3 and IMAP mailboxes and forward mail to a single MS Exchange(TM) mailbox or distribute mail from multi-drop POP3 mailboxes to multiple MS Exchange(TM) users according to address the mail was sent to. * Scans incomming Emails for SPAM against public internet spam blacklists and reroutes or deletes spam emails. * Scans incomming emails with built-in antivirus engine and reroutes or deletes infected emails. * Installs as a service - no need for a user to log in. * Can be installed on same machine as MS Exchange Server(TM) - uses only one internet connection and one POP3 mailbox to receive mail for the whole workgroup or company. * Polls multiple POP3 and IMAP mailboxes and distributes mail to your MS Exchange(TM) mail server. * Flexible scheduling for mail retrieval based on day of week. * Monitor POPcons actions from any system in your network using "POPcon Control" included with the software.

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.

Ocean Mail Server   
http://www.codeocean.com

Ocean Mail Server is a robust and intuitive mail server with many advanced features. Users can access their mail using POP3, IMAP4 or the flexible web mail interface from any web browser. Each user can also configure an extensive set of individual account options via the web mail interface which include address book contacts, signatures, POP3 retrievals and anti-spam filtering. A full web remote administration interface is available to allow the server to be managed from any location. Strong mail filtering can be achieved using the built in anti-spam, antivirus and content filtering facilities. Other features include mailing lists, LDAP, ODBC and a range of tools and setup wizards to make configuration and diagnostics as simple as possible.