Fetch a Range of POP3 Messages

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Demonstrates the Chilkat MailMan.FetchRange method, which retrieves a range of messages from the POP3 mailbox and appends them to an EmailBundle. The arguments are keepOnServer, headersOnly, numBodyLines, a zero-based inclusive startIndex and endIndex, and the EmailBundle. This example fetches the first five messages.

require 'chilkat'

success = false

#  Demonstrates the MailMan.FetchRange method, which retrieves a range of messages from the
#  POP3 mailbox and appends them to an EmailBundle.  The arguments are keepOnServer,
#  headersOnly, numBodyLines, startIndex, endIndex, and the EmailBundle.  The indexes are
#  zero-based and inclusive.

mailman = Chilkat::CkMailMan.new()

#  Configure the POP3 server connection.
mailman.put_MailHost("pop.example.com")
mailman.put_MailPort(995)
mailman.put_PopSsl(true)
mailman.put_PopUsername("user@example.com")
mailman.put_PopPassword("myPassword")

#  Fetch the first 5 messages (indexes 0 through 4), full bodies, leaving them on the server.
#  keepOnServer=true, headersOnly=false (fetch the entire message).
#  Note: numBodyLines only applies when headersOnly is true (it sets how many lines of the
#  body to include along with the headers).  When headersOnly is false, the entire message
#  is fetched and numBodyLines is ignored.
bundle = Chilkat::CkEmailBundle.new()

success = mailman.FetchRange(true,false,0,0,4,bundle)
if (success == false)
    print mailman.lastErrorText() + "\n";
    exit
end

n = bundle.get_MessageCount()
print "Fetched " + n.to_s() + " messages." + "\n";

email = Chilkat::CkEmail.new()

for i in 0 .. n - 1
    success = bundle.EmailAt(i,email)
    print email.subject() + "\n";
end

#  Note: Explicitly connecting/authenticating is optional.  Chilkat MailMan automatically
#  connects and authenticates -- using the property settings above -- whenever a server
#  operation requires it.  Calling the explicit connect/authenticate methods can still be
#  helpful to determine whether a failure occurs while connecting or while authenticating.