Retrieve e-mails using the POP3 protocol (RFC1939).
Replaced use of
Fixed bug that caused an unbound variable error if connection failed.
Errors triggered by invalid or negative replies from the POP3 server are signalled
by raising a compound condition of the kinds
[procedure] (pop3:connect HOSTNAME USERNAME PASSWORD [VERBOSE [PORT]])
- Connects to the server
HOSTNAME using the POP3 protocol and identifies
this client with
PASSWORD. If the optional argument
given and not
#f, then a protocol of the communication with the server is
written to the value of
the port-number and defaults to
This procedure returns an object representing the POP3 session.
[procedure] (pop3:disconnect POP3)
- Closes the connection identified by the session object
[procedure] (pop3:pop3? X)
X is an POP3 session object, or
[procedure] (pop3:list POP3)
- Returns the list of all available messages as an a-list, where each element in the
list is a pair of the form
(MESSAGE-ID . SIZE) representing the message-identifier
and the size of the message in bytes.
[procedure] (pop3:open POP3 INDEX [DELETE])
- Returns a port for the message with id
INDEX and returns an input-port that can
be used to retrieve the header and the contents of the message.
If the optional argument
DELETE is given and not
#f, then the
message will be deleted on the server, when the port is closed.
It is not possible to call
pop3:open before the port returned by a previously invoked call has been closed.
; Download and print all messages:
(define p (pop3:connect "pop3.your-isp.net" "myname" "secret"))
[(id . bytes)
(print "Retrieving message " id ", " bytes " bytes:")
(let ([port (pop3:open p id)])
(display (read-string #f port))
(close-input-port port) ) ] )
(pop3:list p) )
Copyright (c) 2003, Felix L. Winkelmann
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