symbian-qemu-0.9.1-12/python-2.6.1/Lib/smtplib.py
changeset 1 2fb8b9db1c86
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Lib/smtplib.py	Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,827 @@
+#! /usr/bin/env python
+
+'''SMTP/ESMTP client class.
+
+This should follow RFC 821 (SMTP), RFC 1869 (ESMTP), RFC 2554 (SMTP
+Authentication) and RFC 2487 (Secure SMTP over TLS).
+
+Notes:
+
+Please remember, when doing ESMTP, that the names of the SMTP service
+extensions are NOT the same thing as the option keywords for the RCPT
+and MAIL commands!
+
+Example:
+
+  >>> import smtplib
+  >>> s=smtplib.SMTP("localhost")
+  >>> print s.help()
+  This is Sendmail version 8.8.4
+  Topics:
+      HELO    EHLO    MAIL    RCPT    DATA
+      RSET    NOOP    QUIT    HELP    VRFY
+      EXPN    VERB    ETRN    DSN
+  For more info use "HELP <topic>".
+  To report bugs in the implementation send email to
+      sendmail-bugs@sendmail.org.
+  For local information send email to Postmaster at your site.
+  End of HELP info
+  >>> s.putcmd("vrfy","someone@here")
+  >>> s.getreply()
+  (250, "Somebody OverHere <somebody@here.my.org>")
+  >>> s.quit()
+'''
+
+# Author: The Dragon De Monsyne <dragondm@integral.org>
+# ESMTP support, test code and doc fixes added by
+#     Eric S. Raymond <esr@thyrsus.com>
+# Better RFC 821 compliance (MAIL and RCPT, and CRLF in data)
+#     by Carey Evans <c.evans@clear.net.nz>, for picky mail servers.
+# RFC 2554 (authentication) support by Gerhard Haering <gerhard@bigfoot.de>.
+#
+# This was modified from the Python 1.5 library HTTP lib.
+
+import socket
+import re
+import email.utils
+import base64
+import hmac
+from email.base64mime import encode as encode_base64
+from sys import stderr
+
+__all__ = ["SMTPException","SMTPServerDisconnected","SMTPResponseException",
+           "SMTPSenderRefused","SMTPRecipientsRefused","SMTPDataError",
+           "SMTPConnectError","SMTPHeloError","SMTPAuthenticationError",
+           "quoteaddr","quotedata","SMTP"]
+
+SMTP_PORT = 25
+SMTP_SSL_PORT = 465
+CRLF="\r\n"
+
+OLDSTYLE_AUTH = re.compile(r"auth=(.*)", re.I)
+
+# Exception classes used by this module.
+class SMTPException(Exception):
+    """Base class for all exceptions raised by this module."""
+
+class SMTPServerDisconnected(SMTPException):
+    """Not connected to any SMTP server.
+
+    This exception is raised when the server unexpectedly disconnects,
+    or when an attempt is made to use the SMTP instance before
+    connecting it to a server.
+    """
+
+class SMTPResponseException(SMTPException):
+    """Base class for all exceptions that include an SMTP error code.
+
+    These exceptions are generated in some instances when the SMTP
+    server returns an error code.  The error code is stored in the
+    `smtp_code' attribute of the error, and the `smtp_error' attribute
+    is set to the error message.
+    """
+
+    def __init__(self, code, msg):
+        self.smtp_code = code
+        self.smtp_error = msg
+        self.args = (code, msg)
+
+class SMTPSenderRefused(SMTPResponseException):
+    """Sender address refused.
+
+    In addition to the attributes set by on all SMTPResponseException
+    exceptions, this sets `sender' to the string that the SMTP refused.
+    """
+
+    def __init__(self, code, msg, sender):
+        self.smtp_code = code
+        self.smtp_error = msg
+        self.sender = sender
+        self.args = (code, msg, sender)
+
+class SMTPRecipientsRefused(SMTPException):
+    """All recipient addresses refused.
+
+    The errors for each recipient are accessible through the attribute
+    'recipients', which is a dictionary of exactly the same sort as
+    SMTP.sendmail() returns.
+    """
+
+    def __init__(self, recipients):
+        self.recipients = recipients
+        self.args = ( recipients,)
+
+
+class SMTPDataError(SMTPResponseException):
+    """The SMTP server didn't accept the data."""
+
+class SMTPConnectError(SMTPResponseException):
+    """Error during connection establishment."""
+
+class SMTPHeloError(SMTPResponseException):
+    """The server refused our HELO reply."""
+
+class SMTPAuthenticationError(SMTPResponseException):
+    """Authentication error.
+
+    Most probably the server didn't accept the username/password
+    combination provided.
+    """
+
+def quoteaddr(addr):
+    """Quote a subset of the email addresses defined by RFC 821.
+
+    Should be able to handle anything rfc822.parseaddr can handle.
+    """
+    m = (None, None)
+    try:
+        m = email.utils.parseaddr(addr)[1]
+    except AttributeError:
+        pass
+    if m == (None, None): # Indicates parse failure or AttributeError
+        # something weird here.. punt -ddm
+        return "<%s>" % addr
+    elif m is None:
+        # the sender wants an empty return address
+        return "<>"
+    else:
+        return "<%s>" % m
+
+def quotedata(data):
+    """Quote data for email.
+
+    Double leading '.', and change Unix newline '\\n', or Mac '\\r' into
+    Internet CRLF end-of-line.
+    """
+    return re.sub(r'(?m)^\.', '..',
+        re.sub(r'(?:\r\n|\n|\r(?!\n))', CRLF, data))
+
+
+try:
+    import ssl
+except ImportError:
+    _have_ssl = False
+else:
+    class SSLFakeFile:
+        """A fake file like object that really wraps a SSLObject.
+
+        It only supports what is needed in smtplib.
+        """
+        def __init__(self, sslobj):
+            self.sslobj = sslobj
+
+        def readline(self):
+            str = ""
+            chr = None
+            while chr != "\n":
+                chr = self.sslobj.read(1)
+                if not chr: break
+                str += chr
+            return str
+
+        def close(self):
+            pass
+
+    _have_ssl = True
+
+class SMTP:
+    """This class manages a connection to an SMTP or ESMTP server.
+    SMTP Objects:
+        SMTP objects have the following attributes:
+            helo_resp
+                This is the message given by the server in response to the
+                most recent HELO command.
+
+            ehlo_resp
+                This is the message given by the server in response to the
+                most recent EHLO command. This is usually multiline.
+
+            does_esmtp
+                This is a True value _after you do an EHLO command_, if the
+                server supports ESMTP.
+
+            esmtp_features
+                This is a dictionary, which, if the server supports ESMTP,
+                will _after you do an EHLO command_, contain the names of the
+                SMTP service extensions this server supports, and their
+                parameters (if any).
+
+                Note, all extension names are mapped to lower case in the
+                dictionary.
+
+        See each method's docstrings for details.  In general, there is a
+        method of the same name to perform each SMTP command.  There is also a
+        method called 'sendmail' that will do an entire mail transaction.
+        """
+    debuglevel = 0
+    file = None
+    helo_resp = None
+    ehlo_msg = "ehlo"
+    ehlo_resp = None
+    does_esmtp = 0
+
+    def __init__(self, host='', port=0, local_hostname=None,
+                 timeout=socket._GLOBAL_DEFAULT_TIMEOUT):
+        """Initialize a new instance.
+
+        If specified, `host' is the name of the remote host to which to
+        connect.  If specified, `port' specifies the port to which to connect.
+        By default, smtplib.SMTP_PORT is used.  An SMTPConnectError is raised
+        if the specified `host' doesn't respond correctly.  If specified,
+        `local_hostname` is used as the FQDN of the local host.  By default,
+        the local hostname is found using socket.getfqdn().
+
+        """
+        self.timeout = timeout
+        self.esmtp_features = {}
+        self.default_port = SMTP_PORT
+        if host:
+            (code, msg) = self.connect(host, port)
+            if code != 220:
+                raise SMTPConnectError(code, msg)
+        if local_hostname is not None:
+            self.local_hostname = local_hostname
+        else:
+            # RFC 2821 says we should use the fqdn in the EHLO/HELO verb, and
+            # if that can't be calculated, that we should use a domain literal
+            # instead (essentially an encoded IP address like [A.B.C.D]).
+            fqdn = socket.getfqdn()
+            if '.' in fqdn:
+                self.local_hostname = fqdn
+            else:
+                # We can't find an fqdn hostname, so use a domain literal
+                addr = '127.0.0.1'
+                try:
+                    addr = socket.gethostbyname(socket.gethostname())
+                except socket.gaierror:
+                    pass
+                self.local_hostname = '[%s]' % addr
+
+    def set_debuglevel(self, debuglevel):
+        """Set the debug output level.
+
+        A non-false value results in debug messages for connection and for all
+        messages sent to and received from the server.
+
+        """
+        self.debuglevel = debuglevel
+
+    def _get_socket(self, port, host, timeout):
+        # This makes it simpler for SMTP_SSL to use the SMTP connect code
+        # and just alter the socket connection bit.
+        if self.debuglevel > 0: print>>stderr, 'connect:', (host, port)
+        return socket.create_connection((port, host), timeout)
+
+    def connect(self, host='localhost', port = 0):
+        """Connect to a host on a given port.
+
+        If the hostname ends with a colon (`:') followed by a number, and
+        there is no port specified, that suffix will be stripped off and the
+        number interpreted as the port number to use.
+
+        Note: This method is automatically invoked by __init__, if a host is
+        specified during instantiation.
+
+        """
+        if not port and (host.find(':') == host.rfind(':')):
+            i = host.rfind(':')
+            if i >= 0:
+                host, port = host[:i], host[i+1:]
+                try: port = int(port)
+                except ValueError:
+                    raise socket.error, "nonnumeric port"
+        if not port: port = self.default_port
+        if self.debuglevel > 0: print>>stderr, 'connect:', (host, port)
+        self.sock = self._get_socket(host, port, self.timeout)
+        (code, msg) = self.getreply()
+        if self.debuglevel > 0: print>>stderr, "connect:", msg
+        return (code, msg)
+
+    def send(self, str):
+        """Send `str' to the server."""
+        if self.debuglevel > 0: print>>stderr, 'send:', repr(str)
+        if hasattr(self, 'sock') and self.sock:
+            try:
+                self.sock.sendall(str)
+            except socket.error:
+                self.close()
+                raise SMTPServerDisconnected('Server not connected')
+        else:
+            raise SMTPServerDisconnected('please run connect() first')
+
+    def putcmd(self, cmd, args=""):
+        """Send a command to the server."""
+        if args == "":
+            str = '%s%s' % (cmd, CRLF)
+        else:
+            str = '%s %s%s' % (cmd, args, CRLF)
+        self.send(str)
+
+    def getreply(self):
+        """Get a reply from the server.
+
+        Returns a tuple consisting of:
+
+          - server response code (e.g. '250', or such, if all goes well)
+            Note: returns -1 if it can't read response code.
+
+          - server response string corresponding to response code (multiline
+            responses are converted to a single, multiline string).
+
+        Raises SMTPServerDisconnected if end-of-file is reached.
+        """
+        resp=[]
+        if self.file is None:
+            self.file = self.sock.makefile('rb')
+        while 1:
+            line = self.file.readline()
+            if line == '':
+                self.close()
+                raise SMTPServerDisconnected("Connection unexpectedly closed")
+            if self.debuglevel > 0: print>>stderr, 'reply:', repr(line)
+            resp.append(line[4:].strip())
+            code=line[:3]
+            # Check that the error code is syntactically correct.
+            # Don't attempt to read a continuation line if it is broken.
+            try:
+                errcode = int(code)
+            except ValueError:
+                errcode = -1
+                break
+            # Check if multiline response.
+            if line[3:4]!="-":
+                break
+
+        errmsg = "\n".join(resp)
+        if self.debuglevel > 0:
+            print>>stderr, 'reply: retcode (%s); Msg: %s' % (errcode,errmsg)
+        return errcode, errmsg
+
+    def docmd(self, cmd, args=""):
+        """Send a command, and return its response code."""
+        self.putcmd(cmd,args)
+        return self.getreply()
+
+    # std smtp commands
+    def helo(self, name=''):
+        """SMTP 'helo' command.
+        Hostname to send for this command defaults to the FQDN of the local
+        host.
+        """
+        self.putcmd("helo", name or self.local_hostname)
+        (code,msg)=self.getreply()
+        self.helo_resp=msg
+        return (code,msg)
+
+    def ehlo(self, name=''):
+        """ SMTP 'ehlo' command.
+        Hostname to send for this command defaults to the FQDN of the local
+        host.
+        """
+        self.esmtp_features = {}
+        self.putcmd(self.ehlo_msg, name or self.local_hostname)
+        (code,msg)=self.getreply()
+        # According to RFC1869 some (badly written)
+        # MTA's will disconnect on an ehlo. Toss an exception if
+        # that happens -ddm
+        if code == -1 and len(msg) == 0:
+            self.close()
+            raise SMTPServerDisconnected("Server not connected")
+        self.ehlo_resp=msg
+        if code != 250:
+            return (code,msg)
+        self.does_esmtp=1
+        #parse the ehlo response -ddm
+        resp=self.ehlo_resp.split('\n')
+        del resp[0]
+        for each in resp:
+            # To be able to communicate with as many SMTP servers as possible,
+            # we have to take the old-style auth advertisement into account,
+            # because:
+            # 1) Else our SMTP feature parser gets confused.
+            # 2) There are some servers that only advertise the auth methods we
+            #    support using the old style.
+            auth_match = OLDSTYLE_AUTH.match(each)
+            if auth_match:
+                # This doesn't remove duplicates, but that's no problem
+                self.esmtp_features["auth"] = self.esmtp_features.get("auth", "") \
+                        + " " + auth_match.groups(0)[0]
+                continue
+
+            # RFC 1869 requires a space between ehlo keyword and parameters.
+            # It's actually stricter, in that only spaces are allowed between
+            # parameters, but were not going to check for that here.  Note
+            # that the space isn't present if there are no parameters.
+            m=re.match(r'(?P<feature>[A-Za-z0-9][A-Za-z0-9\-]*) ?',each)
+            if m:
+                feature=m.group("feature").lower()
+                params=m.string[m.end("feature"):].strip()
+                if feature == "auth":
+                    self.esmtp_features[feature] = self.esmtp_features.get(feature, "") \
+                            + " " + params
+                else:
+                    self.esmtp_features[feature]=params
+        return (code,msg)
+
+    def has_extn(self, opt):
+        """Does the server support a given SMTP service extension?"""
+        return opt.lower() in self.esmtp_features
+
+    def help(self, args=''):
+        """SMTP 'help' command.
+        Returns help text from server."""
+        self.putcmd("help", args)
+        return self.getreply()[1]
+
+    def rset(self):
+        """SMTP 'rset' command -- resets session."""
+        return self.docmd("rset")
+
+    def noop(self):
+        """SMTP 'noop' command -- doesn't do anything :>"""
+        return self.docmd("noop")
+
+    def mail(self,sender,options=[]):
+        """SMTP 'mail' command -- begins mail xfer session."""
+        optionlist = ''
+        if options and self.does_esmtp:
+            optionlist = ' ' + ' '.join(options)
+        self.putcmd("mail", "FROM:%s%s" % (quoteaddr(sender) ,optionlist))
+        return self.getreply()
+
+    def rcpt(self,recip,options=[]):
+        """SMTP 'rcpt' command -- indicates 1 recipient for this mail."""
+        optionlist = ''
+        if options and self.does_esmtp:
+            optionlist = ' ' + ' '.join(options)
+        self.putcmd("rcpt","TO:%s%s" % (quoteaddr(recip),optionlist))
+        return self.getreply()
+
+    def data(self,msg):
+        """SMTP 'DATA' command -- sends message data to server.
+
+        Automatically quotes lines beginning with a period per rfc821.
+        Raises SMTPDataError if there is an unexpected reply to the
+        DATA command; the return value from this method is the final
+        response code received when the all data is sent.
+        """
+        self.putcmd("data")
+        (code,repl)=self.getreply()
+        if self.debuglevel >0 : print>>stderr, "data:", (code,repl)
+        if code != 354:
+            raise SMTPDataError(code,repl)
+        else:
+            q = quotedata(msg)
+            if q[-2:] != CRLF:
+                q = q + CRLF
+            q = q + "." + CRLF
+            self.send(q)
+            (code,msg)=self.getreply()
+            if self.debuglevel >0 : print>>stderr, "data:", (code,msg)
+            return (code,msg)
+
+    def verify(self, address):
+        """SMTP 'verify' command -- checks for address validity."""
+        self.putcmd("vrfy", quoteaddr(address))
+        return self.getreply()
+    # a.k.a.
+    vrfy=verify
+
+    def expn(self, address):
+        """SMTP 'expn' command -- expands a mailing list."""
+        self.putcmd("expn", quoteaddr(address))
+        return self.getreply()
+
+    # some useful methods
+
+    def ehlo_or_helo_if_needed(self):
+        """Call self.ehlo() and/or self.helo() if needed.
+
+        If there has been no previous EHLO or HELO command this session, this
+        method tries ESMTP EHLO first.
+
+        This method may raise the following exceptions:
+
+         SMTPHeloError            The server didn't reply properly to
+                                  the helo greeting.
+        """
+        if self.helo_resp is None and self.ehlo_resp is None:
+            if not (200 <= self.ehlo()[0] <= 299):
+                (code, resp) = self.helo()
+                if not (200 <= code <= 299):
+                    raise SMTPHeloError(code, resp)
+
+    def login(self, user, password):
+        """Log in on an SMTP server that requires authentication.
+
+        The arguments are:
+            - user:     The user name to authenticate with.
+            - password: The password for the authentication.
+
+        If there has been no previous EHLO or HELO command this session, this
+        method tries ESMTP EHLO first.
+
+        This method will return normally if the authentication was successful.
+
+        This method may raise the following exceptions:
+
+         SMTPHeloError            The server didn't reply properly to
+                                  the helo greeting.
+         SMTPAuthenticationError  The server didn't accept the username/
+                                  password combination.
+         SMTPException            No suitable authentication method was
+                                  found.
+        """
+
+        def encode_cram_md5(challenge, user, password):
+            challenge = base64.decodestring(challenge)
+            response = user + " " + hmac.HMAC(password, challenge).hexdigest()
+            return encode_base64(response, eol="")
+
+        def encode_plain(user, password):
+            return encode_base64("\0%s\0%s" % (user, password), eol="")
+
+
+        AUTH_PLAIN = "PLAIN"
+        AUTH_CRAM_MD5 = "CRAM-MD5"
+        AUTH_LOGIN = "LOGIN"
+
+        self.ehlo_or_helo_if_needed()
+
+        if not self.has_extn("auth"):
+            raise SMTPException("SMTP AUTH extension not supported by server.")
+
+        # Authentication methods the server supports:
+        authlist = self.esmtp_features["auth"].split()
+
+        # List of authentication methods we support: from preferred to
+        # less preferred methods. Except for the purpose of testing the weaker
+        # ones, we prefer stronger methods like CRAM-MD5:
+        preferred_auths = [AUTH_CRAM_MD5, AUTH_PLAIN, AUTH_LOGIN]
+
+        # Determine the authentication method we'll use
+        authmethod = None
+        for method in preferred_auths:
+            if method in authlist:
+                authmethod = method
+                break
+
+        if authmethod == AUTH_CRAM_MD5:
+            (code, resp) = self.docmd("AUTH", AUTH_CRAM_MD5)
+            if code == 503:
+                # 503 == 'Error: already authenticated'
+                return (code, resp)
+            (code, resp) = self.docmd(encode_cram_md5(resp, user, password))
+        elif authmethod == AUTH_PLAIN:
+            (code, resp) = self.docmd("AUTH",
+                AUTH_PLAIN + " " + encode_plain(user, password))
+        elif authmethod == AUTH_LOGIN:
+            (code, resp) = self.docmd("AUTH",
+                "%s %s" % (AUTH_LOGIN, encode_base64(user, eol="")))
+            if code != 334:
+                raise SMTPAuthenticationError(code, resp)
+            (code, resp) = self.docmd(encode_base64(password, eol=""))
+        elif authmethod is None:
+            raise SMTPException("No suitable authentication method found.")
+        if code not in (235, 503):
+            # 235 == 'Authentication successful'
+            # 503 == 'Error: already authenticated'
+            raise SMTPAuthenticationError(code, resp)
+        return (code, resp)
+
+    def starttls(self, keyfile = None, certfile = None):
+        """Puts the connection to the SMTP server into TLS mode.
+
+        If there has been no previous EHLO or HELO command this session, this
+        method tries ESMTP EHLO first.
+
+        If the server supports TLS, this will encrypt the rest of the SMTP
+        session. If you provide the keyfile and certfile parameters,
+        the identity of the SMTP server and client can be checked. This,
+        however, depends on whether the socket module really checks the
+        certificates.
+
+        This method may raise the following exceptions:
+
+         SMTPHeloError            The server didn't reply properly to
+                                  the helo greeting.
+        """
+        self.ehlo_or_helo_if_needed()
+        if not self.has_extn("starttls"):
+            raise SMTPException("STARTTLS extension not supported by server.")
+        (resp, reply) = self.docmd("STARTTLS")
+        if resp == 220:
+            if not _have_ssl:
+                raise RuntimeError("No SSL support included in this Python")
+            self.sock = ssl.wrap_socket(self.sock, keyfile, certfile)
+            self.file = SSLFakeFile(self.sock)
+            # RFC 3207:
+            # The client MUST discard any knowledge obtained from
+            # the server, such as the list of SMTP service extensions,
+            # which was not obtained from the TLS negotiation itself.
+            self.helo_resp = None
+            self.ehlo_resp = None
+            self.esmtp_features = {}
+            self.does_esmtp = 0
+        return (resp, reply)
+
+    def sendmail(self, from_addr, to_addrs, msg, mail_options=[],
+                 rcpt_options=[]):
+        """This command performs an entire mail transaction.
+
+        The arguments are:
+            - from_addr    : The address sending this mail.
+            - to_addrs     : A list of addresses to send this mail to.  A bare
+                             string will be treated as a list with 1 address.
+            - msg          : The message to send.
+            - mail_options : List of ESMTP options (such as 8bitmime) for the
+                             mail command.
+            - rcpt_options : List of ESMTP options (such as DSN commands) for
+                             all the rcpt commands.
+
+        If there has been no previous EHLO or HELO command this session, this
+        method tries ESMTP EHLO first.  If the server does ESMTP, message size
+        and each of the specified options will be passed to it.  If EHLO
+        fails, HELO will be tried and ESMTP options suppressed.
+
+        This method will return normally if the mail is accepted for at least
+        one recipient.  It returns a dictionary, with one entry for each
+        recipient that was refused.  Each entry contains a tuple of the SMTP
+        error code and the accompanying error message sent by the server.
+
+        This method may raise the following exceptions:
+
+         SMTPHeloError          The server didn't reply properly to
+                                the helo greeting.
+         SMTPRecipientsRefused  The server rejected ALL recipients
+                                (no mail was sent).
+         SMTPSenderRefused      The server didn't accept the from_addr.
+         SMTPDataError          The server replied with an unexpected
+                                error code (other than a refusal of
+                                a recipient).
+
+        Note: the connection will be open even after an exception is raised.
+
+        Example:
+
+         >>> import smtplib
+         >>> s=smtplib.SMTP("localhost")
+         >>> tolist=["one@one.org","two@two.org","three@three.org","four@four.org"]
+         >>> msg = '''\\
+         ... From: Me@my.org
+         ... Subject: testin'...
+         ...
+         ... This is a test '''
+         >>> s.sendmail("me@my.org",tolist,msg)
+         { "three@three.org" : ( 550 ,"User unknown" ) }
+         >>> s.quit()
+
+        In the above example, the message was accepted for delivery to three
+        of the four addresses, and one was rejected, with the error code
+        550.  If all addresses are accepted, then the method will return an
+        empty dictionary.
+
+        """
+        self.ehlo_or_helo_if_needed()
+        esmtp_opts = []
+        if self.does_esmtp:
+            # Hmmm? what's this? -ddm
+            # self.esmtp_features['7bit']=""
+            if self.has_extn('size'):
+                esmtp_opts.append("size=%d" % len(msg))
+            for option in mail_options:
+                esmtp_opts.append(option)
+
+        (code,resp) = self.mail(from_addr, esmtp_opts)
+        if code != 250:
+            self.rset()
+            raise SMTPSenderRefused(code, resp, from_addr)
+        senderrs={}
+        if isinstance(to_addrs, basestring):
+            to_addrs = [to_addrs]
+        for each in to_addrs:
+            (code,resp)=self.rcpt(each, rcpt_options)
+            if (code != 250) and (code != 251):
+                senderrs[each]=(code,resp)
+        if len(senderrs)==len(to_addrs):
+            # the server refused all our recipients
+            self.rset()
+            raise SMTPRecipientsRefused(senderrs)
+        (code,resp) = self.data(msg)
+        if code != 250:
+            self.rset()
+            raise SMTPDataError(code, resp)
+        #if we got here then somebody got our mail
+        return senderrs
+
+
+    def close(self):
+        """Close the connection to the SMTP server."""
+        if self.file:
+            self.file.close()
+        self.file = None
+        if self.sock:
+            self.sock.close()
+        self.sock = None
+
+
+    def quit(self):
+        """Terminate the SMTP session."""
+        res = self.docmd("quit")
+        self.close()
+        return res
+
+if _have_ssl:
+
+    class SMTP_SSL(SMTP):
+        """ This is a subclass derived from SMTP that connects over an SSL encrypted
+        socket (to use this class you need a socket module that was compiled with SSL
+        support). If host is not specified, '' (the local host) is used. If port is
+        omitted, the standard SMTP-over-SSL port (465) is used. keyfile and certfile
+        are also optional - they can contain a PEM formatted private key and
+        certificate chain file for the SSL connection.
+        """
+        def __init__(self, host='', port=0, local_hostname=None,
+                     keyfile=None, certfile=None,
+                     timeout=socket._GLOBAL_DEFAULT_TIMEOUT):
+            self.keyfile = keyfile
+            self.certfile = certfile
+            SMTP.__init__(self, host, port, local_hostname, timeout)
+            self.default_port = SMTP_SSL_PORT
+
+        def _get_socket(self, host, port, timeout):
+            if self.debuglevel > 0: print>>stderr, 'connect:', (host, port)
+            self.sock = socket.create_connection((host, port), timeout)
+            self.sock = ssl.wrap_socket(self.sock, self.keyfile, self.certfile)
+            self.file = SSLFakeFile(self.sock)
+
+    __all__.append("SMTP_SSL")
+
+#
+# LMTP extension
+#
+LMTP_PORT = 2003
+
+class LMTP(SMTP):
+    """LMTP - Local Mail Transfer Protocol
+
+    The LMTP protocol, which is very similar to ESMTP, is heavily based
+    on the standard SMTP client. It's common to use Unix sockets for LMTP,
+    so our connect() method must support that as well as a regular
+    host:port server. To specify a Unix socket, you must use an absolute
+    path as the host, starting with a '/'.
+
+    Authentication is supported, using the regular SMTP mechanism. When
+    using a Unix socket, LMTP generally don't support or require any
+    authentication, but your mileage might vary."""
+
+    ehlo_msg = "lhlo"
+
+    def __init__(self, host = '', port = LMTP_PORT, local_hostname = None):
+        """Initialize a new instance."""
+        SMTP.__init__(self, host, port, local_hostname)
+
+    def connect(self, host = 'localhost', port = 0):
+        """Connect to the LMTP daemon, on either a Unix or a TCP socket."""
+        if host[0] != '/':
+            return SMTP.connect(self, host, port)
+
+        # Handle Unix-domain sockets.
+        try:
+            self.sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
+            self.sock.connect(host)
+        except socket.error, msg:
+            if self.debuglevel > 0: print>>stderr, 'connect fail:', host
+            if self.sock:
+                self.sock.close()
+            self.sock = None
+            raise socket.error, msg
+        (code, msg) = self.getreply()
+        if self.debuglevel > 0: print>>stderr, "connect:", msg
+        return (code, msg)
+
+
+# Test the sendmail method, which tests most of the others.
+# Note: This always sends to localhost.
+if __name__ == '__main__':
+    import sys
+
+    def prompt(prompt):
+        sys.stdout.write(prompt + ": ")
+        return sys.stdin.readline().strip()
+
+    fromaddr = prompt("From")
+    toaddrs  = prompt("To").split(',')
+    print "Enter message, end with ^D:"
+    msg = ''
+    while 1:
+        line = sys.stdin.readline()
+        if not line:
+            break
+        msg = msg + line
+    print "Message length is %d" % len(msg)
+
+    server = SMTP('localhost')
+    server.set_debuglevel(1)
+    server.sendmail(fromaddr, toaddrs, msg)
+    server.quit()