Problem in implementing POP3 protocol.

hi...
i wanna implement POP3 protocol......actully i m designing an mail client..n i m using POP3 protocol to receive mails frm a POP3 server..but i dn't kno how to implement it?..how to go ahead to implement it?...plzz help me...if u hav any sort of coding regarding to POP3..then plz mail me at [email protected]...

http://www.rfc-editor.org/cgi-bin/rfcdoctype.pl?loc=RFC&letsgo=1939&type=ftp&file_format=txt
http://www.rfc-editor.org/cgi-bin/rfcsearch.pl?searchwords=rfc1957&opt=All+fields&num=25&format=ftp&orgkeyword=POP3&filefmt=txt&search_doc=search_all&match_method=prefix&abstract=absoff&keywords=keyoff&sort_method=newer
http://www.rfc-editor.org/cgi-bin/rfcsearch.pl?searchwords=rfc2449&opt=All+fields&num=25&format=ftp&orgkeyword=POP3&filefmt=txt&search_doc=search_all&match_method=prefix&abstract=absoff&keywords=keyoff&sort_method=newer
The protocol itself is very simple and shouldn't cause any difficulty in Java.

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