--- a/mercurial/mail.py	Thu Nov 06 09:36:39 2014 +0100
+++ b/mercurial/mail.py	Wed Nov 05 18:31:39 2014 +0000
@@ -104,6 +104,7 @@
         if util.parsebool(verifycert) is not False:
             raise util.Abort(_('invalid smtp.verifycert configuration: %s')
                              % (verifycert))
+        verifycert = False
     if (starttls or smtps) and verifycert:
         sslkwargs = sslutil.sslkwargs(ui, mailhost)
     else: