Remote email tunnel:

What is remote email tunnel? This utility allows you to check your emails from a POP3 or IMAP server and reply them from a web browser.

Want to know how remote email works
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But I can do this with Yahoo, Netscape, Hotmail and other sites like that. Why do need another one? Same functionality is provided by web sites like Yahoo, Hotmail, Netscape and many others with one significant difference. They DO NOT allow you to reply to the messages using your SMTP server. When you reply to your messages, they go out from your Yahoo or Hotmail account, not the account of your choice.

Why do I need something like this? Many organizations only allow web access to the outside world through their firewall. In which case you cannot check your personal emails using conventional email clients that uses either POP3 or IMAP protocols. Remote email tunnel allows you to access your email using the HTTP protocol and therefore, the firewall does not care.