POPcon 

POPcon connects MS Exchange to POP3 and IMAP mailboxes. It acts as an e-mail collector that retrieves messages from POP3 mailboxes and delivers them to your Exchange Server mailboxes according to the intended user found in the mails.
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POPcon PRO 

POPcon PRO connects MS Exchange to POP3+IMAP mailboxes. It retrieves messages from POP3 mailboxes and delivers them to your Exchange Server mailboxes according to the intended user found in the mails. It scans emails for SPAM and Virus content.
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Pop3Hot 

Pop3Hot is a new eMail solution to synchronize AOL, MSN, Hotmail or Yahoo with Outlook, Eudora, Pocket PC and others. Download and send messages, incl. all attachments. Synchronize all folders and use them offline via POP3, IMAP4 and SMTP.
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PocoMail Portable Edition 

Have access to your e-mail at home and at the office at all times, or in a cybercafe knowing you are secure. Have the full power of PocoMail at your disposal wherever you go. Portability of webmail with power and security of a desktop e-mail program.
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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 Exchange.
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CliMail 

CliMail is a set of command line utilities designed to send and receive email. Send plain-text or HTML (with embedded pictures) email with attachments using to, bcc, and cc recipients. List, display or delete email from POP3(S) or IMAP(S) mailboxes
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