diff --git a/Lib/email/_parseaddr.py b/Lib/email/_parseaddr.py
index 8047df2..81913a3 100644
--- a/Lib/email/_parseaddr.py
+++ b/Lib/email/_parseaddr.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2002-2006 Python Software Foundation
+# Copyright (C) 2002-2007 Python Software Foundation
 # Contact: email-sig@python.org
 
 """Email address parsing code.
@@ -172,6 +172,7 @@
         self.pos = 0
         self.LWS = ' \t'
         self.CR = '\r\n'
+        self.FWS = self.LWS + self.CR
         self.atomends = self.specials + self.LWS + self.CR
         # Note that RFC 2822 now specifies `.' as obs-phrase, meaning that it
         # is obsolete syntax.  RFC 2822 requires that we recognize obsolete
@@ -418,7 +419,7 @@
         plist = []
 
         while self.pos < len(self.field):
-            if self.field[self.pos] in self.LWS:
+            if self.field[self.pos] in self.FWS:
                 self.pos += 1
             elif self.field[self.pos] == '"':
                 plist.append(self.getquote())
diff --git a/Lib/email/header.py b/Lib/email/header.py
index 3de44f9..ab0d3fc 100644
--- a/Lib/email/header.py
+++ b/Lib/email/header.py
@@ -39,7 +39,8 @@
   \?                    # literal ?
   (?P<encoded>.*?)      # non-greedy up to the next ?= is the encoded string
   \?=                   # literal ?=
-  ''', re.VERBOSE | re.IGNORECASE)
+  (?=[ \t]|$)           # whitespace or the end of the string
+  ''', re.VERBOSE | re.IGNORECASE | re.MULTILINE)
 
 # Field name regexp, including trailing colon, but not separating whitespace,
 # according to RFC 2822.  Character range is from tilde to exclamation mark.
diff --git a/Lib/email/message.py b/Lib/email/message.py
index 9d25cb0..6fc3af1 100644
--- a/Lib/email/message.py
+++ b/Lib/email/message.py
@@ -238,7 +238,7 @@
             self.del_param('charset')
             self._charset = None
             return
-        if isinstance(charset, str):
+        if isinstance(charset, basestring):
             charset = email.charset.Charset(charset)
         if not isinstance(charset, email.charset.Charset):
             raise TypeError(charset)
@@ -756,7 +756,9 @@
                 charset = charset[2]
         # charset character must be in us-ascii range
         try:
-            charset = unicode(charset, 'us-ascii').encode('us-ascii')
+            if isinstance(charset, str):
+                charset = unicode(charset, 'us-ascii')
+            charset = charset.encode('us-ascii')
         except UnicodeError:
             return failobj
         # RFC 2046, $4.1.2 says charsets are not case sensitive
diff --git a/Lib/email/test/test_email.py b/Lib/email/test/test_email.py
index c3269d7..a2e09fa 100644
--- a/Lib/email/test/test_email.py
+++ b/Lib/email/test/test_email.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2001-2006 Python Software Foundation
+# Copyright (C) 2001-2007 Python Software Foundation
 # Contact: email-sig@python.org
 # email package unit tests
 
@@ -501,6 +501,13 @@
         msg.set_payload(x)
         self.assertEqual(msg.get_payload(decode=True), x)
 
+    def test_get_content_charset(self):
+        msg = Message()
+        msg.set_charset('us-ascii')
+        self.assertEqual('us-ascii', msg.get_content_charset())
+        msg.set_charset(u'us-ascii')
+        self.assertEqual('us-ascii', msg.get_content_charset())
+
 
 
 # Test the email.Encoders module
@@ -1519,6 +1526,18 @@
         hu = make_header(dh).__unicode__()
         eq(hu, u'The quick brown fox jumped over the lazy dog')
 
+    def test_rfc2047_without_whitespace(self):
+        s = 'Sm=?ISO-8859-1?B?9g==?=rg=?ISO-8859-1?B?5Q==?=sbord'
+        dh = decode_header(s)
+        self.assertEqual(dh, [(s, None)])
+
+    def test_rfc2047_with_whitespace(self):
+        s = 'Sm =?ISO-8859-1?B?9g==?= rg =?ISO-8859-1?B?5Q==?= sbord'
+        dh = decode_header(s)
+        self.assertEqual(dh, [('Sm', None), ('\xf6', 'iso-8859-1'),
+                              ('rg', None), ('\xe5', 'iso-8859-1'),
+                              ('sbord', None)])
+
 
 
 # Test the MIMEMessage class
@@ -2164,6 +2183,12 @@
         # formataddr() quotes the name if there's a dot in it
         self.assertEqual(Utils.formataddr((a, b)), y)
 
+    def test_multiline_from_comment(self):
+        x = """\
+Foo
+\tBar <foo@example.com>"""
+        self.assertEqual(Utils.parseaddr(x), ('Foo Bar', 'foo@example.com'))
+
     def test_quote_dump(self):
         self.assertEqual(
             Utils.formataddr(('A Silly; Person', 'person@dom.ain')),
diff --git a/Lib/email/test/test_email_renamed.py b/Lib/email/test/test_email_renamed.py
index 21061b0..7f72270 100644
--- a/Lib/email/test/test_email_renamed.py
+++ b/Lib/email/test/test_email_renamed.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2001-2006 Python Software Foundation
+# Copyright (C) 2001-2007 Python Software Foundation
 # Contact: email-sig@python.org
 # email package unit tests
 
@@ -1524,6 +1524,18 @@
         hu = make_header(dh).__unicode__()
         eq(hu, u'The quick brown fox jumped over the lazy dog')
 
+    def test_rfc2047_missing_whitespace(self):
+        s = 'Sm=?ISO-8859-1?B?9g==?=rg=?ISO-8859-1?B?5Q==?=sbord'
+        dh = decode_header(s)
+        self.assertEqual(dh, [(s, None)])
+
+    def test_rfc2047_with_whitespace(self):
+        s = 'Sm =?ISO-8859-1?B?9g==?= rg =?ISO-8859-1?B?5Q==?= sbord'
+        dh = decode_header(s)
+        self.assertEqual(dh, [('Sm', None), ('\xf6', 'iso-8859-1'),
+                              ('rg', None), ('\xe5', 'iso-8859-1'),
+                              ('sbord', None)])
+
 
 
 # Test the MIMEMessage class
@@ -2170,6 +2182,12 @@
         # formataddr() quotes the name if there's a dot in it
         self.assertEqual(utils.formataddr((a, b)), y)
 
+    def test_multiline_from_comment(self):
+        x = """\
+Foo
+\tBar <foo@example.com>"""
+        self.assertEqual(utils.parseaddr(x), ('Foo Bar', 'foo@example.com'))
+
     def test_quote_dump(self):
         self.assertEqual(
             utils.formataddr(('A Silly; Person', 'person@dom.ain')),