diff -r 6a961a54f953 -r 6e5427447f4c mercurial/ui.py
--- a/mercurial/ui.py	Fri Jul 07 11:23:53 2006 +0200
+++ b/mercurial/ui.py	Sun Jul 09 14:12:19 2006 +0200
@@ -298,7 +298,8 @@
         def smtp():
             '''send mail using smtp.'''
 
-            s = smtplib.SMTP()
+            local_hostname = self.config('smtp', 'local_hostname')
+            s = smtplib.SMTP(local_hostname=local_hostname)
             mailhost = self.config('smtp', 'host')
             if not mailhost:
                 raise util.Abort(_('no [smtp]host in hgrc - cannot send mail'))