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Download and Save Email Attachments (POP3)

Downloads emails from a POP3 mailbox and saves all attachments.

Download Chilkat Ruby Library

require 'chilkat'

#  The mailman object is used for receiving (POP3)
#  and sending (SMTP) email.
mailman = Chilkat::CkMailMan.new()

#  Any string argument automatically begins the 30-day trial.
success = mailman.UnlockComponent("30-day trial")
if (success != true)
    print "Component unlock failed" + "\n"
    exit
end

#  Set the POP3 server's hostname
mailman.put_MailHost("mail.chilkatsoft.com")

#  Set the POP3 login/password.
mailman.put_PopUsername("***")
mailman.put_PopPassword("***")

#  Copy the all email from the user's POP3 mailbox
#  into a bundle object.  The email remains on the server.
bundle = mailman.CopyMail()

if (bundle == nil )
    print mailman.lastErrorText() + "\n"
    exit
end

dirPath = "c:/myAttachments"

for i in 0 .. bundle.get_MessageCount() - 1
    email = bundle.GetEmail(i)

    #  You may save all the attachments to the specified directory
    #  by calling SaveAllAttachments.
    #  The SaveAllAttachments method will automatically create the directory
    #  if it does not already exist.
    success = email.SaveAllAttachments(dirPath)
    if (success != true)
        print email.lastErrorText() + "\n"
        exit
    end

    #  The OverwriteExisting property controls whether already-existing files
    #  are automatically overwritten.  By default, it is set to true so that existing
    #  files will be overwritten.

    #  Setting OverwriteExisting = false will cause the attachment-saving methods to generate
    #  unique filenames if a file with the same name already exists.  The actual filename(s)
    #  saved will be present by calling GetAttachmentFilename for each attachment *after*
    #  saving.
    #  For example...
    email.put_OverwriteExisting(false)
    success = email.SaveAllAttachments(dirPath)
    if (success != true)
        print email.lastErrorText() + "\n"
        exit
    end

    n = email.get_NumAttachments()

    for j in 0 .. n - 1
        #  If the attachment filename was changed to prevent overwriting,
        #  GetAttachmentFilename will return the new filename.
        print email.getAttachmentFilename(j) + "\n";
    end

    #  You may also save individual attachments:
    for j in 0 .. n - 1

        print "Original Filename: " + email.getAttachmentFilename(j) + "\n";
        success = email.SaveAttachedFile(j,dirPath)
        if (success != true)
            print email.lastErrorText() + "\n"
            exit
        end

        #  If OverwriteExisting = true, the saved filename will always equal the original filename,
        #  unless there are characters present in the filename that are not allowed by Windows,
        #  such as * ? < > | etc.  In those cases the illegal characters are either removed or replaced
        #  with underscore characters to allow the file to be saved.
        print "Saved Filename: " + email.getAttachmentFilename(j) + "\n";
    end

end


 

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