diff --git a/dkimpy_milter/__init__.py b/dkimpy_milter/__init__.py
index 29e49ea..6ca8926 100644
--- a/dkimpy_milter/__init__.py
+++ b/dkimpy_milter/__init__.py
@@ -150,7 +150,7 @@ class dkimMilter(Milter.Base):
                 syslog.syslog("{0}: {1}".format(name, val))
             self.has_dkim += 1
         if lname == 'from':
-            fname, self.author = parseaddr(idna.encode(val))
+            fname, self.author = parseaddr(idna.alabel(val))
             try:
                 self.fdomain = self.author.split('@')[1].lower()
             except IndexError as er: