--- a/common/mail.py	Mon Nov 23 14:13:53 2009 +0100
+++ b/common/mail.py	Thu Dec 03 17:17:43 2009 +0100
@@ -198,6 +198,11 @@
                 subject = self.subject()
             except SkipEmail:
                 continue
+            except Exception, ex:
+                # shouldn't make the whole transaction fail because of rendering
+                # error (unauthorized or such)
+                self.exception(str(ex))
+                continue
             msg = format_mail(self.user_data, [emailaddr], content, subject,
                               config=self._cw.vreg.config, msgid=msgid, references=refs)
             yield [emailaddr], msg