Can someone please help me to figure out what's wrong, with this error message I have the following traceback Zope Version Zope 2.3.2b2 (source release, python 1.5.2, linux2) Python Version 2.0 (#2, Jan 8 2001, 16:54:34) [GCC 2.95.2 19991024 (release)] System Platform freebsd4 Site Error An error was encountered while publishing this resource. TypeError Sorry, a site error occurred. Traceback (innermost last): File /usr/home/khine/usr/local/Zope/lib/python/ZPublisher/Publish.py, line 223, in publish_module File /usr/home/khine/usr/local/Zope/lib/python/ZPublisher/Publish.py, line 187, in publish File /usr/home/khine/usr/local/Zope/lib/python/Zope/__init__.py, line 221, in zpublisher_exception_hook (Object: CatalogAware) File /usr/home/khine/usr/local/Zope/lib/python/ZPublisher/Publish.py, line 171, in publish File /usr/home/khine/usr/local/Zope/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: buy) File /usr/home/khine/usr/local/Zope/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: buy) File /usr/home/khine/usr/local/Zope/lib/python/Products/Etailer/Cart.py, line 282, in buy (Object: Traversable) File /usr/home/khine/usr/local/Zope/lib/python/Products/Etailer/OrderManager.py, line 115, in create_order (Object: RoleManager) File /usr/home/khine/usr/local/Zope/lib/python/DocumentTemplate/DT_String.py, line 538, in __call__ (Object: <string>) File /usr/home/khine/usr/local/Zope/lib/python/DocumentTemplate/DT_Util.py, line 334, in eval (Object: style().postOrder(_.None,_)) (Info: _) File <string>, line 0, in ? File /usr/home/khine/usr/local/Zope/lib/python/OFS/DTMLMethod.py, line 182, in __call__ (Object: postOrder) File /usr/home/khine/usr/local/Zope/lib/python/DocumentTemplate/DT_String.py, line 538, in __call__ (Object: postOrder) File /usr/home/khine/usr/local/Zope/lib/python/Products/MailHost/SendMailTag.py, line 189, in render (Object: MailHost) File /usr/home/khine/usr/local/Zope/lib/python/Products/MailHost/MailHost.py, line 222, in send (Object: MailHost) File /usr/home/khine/usr/local/lib/python2.0/smtplib.py, line 473, in sendmail File /usr/home/khine/usr/local/lib/python2.0/smtplib.py, line 355, in mail File /usr/home/khine/usr/local/lib/python2.0/smtplib.py, line 118, in quoteaddr File /usr/home/khine/usr/local/lib/python2.0/rfc822.py, line 477, in parseaddr File /usr/home/khine/usr/local/lib/python2.0/rfc822.py, line 522, in getaddrlist File /usr/home/khine/usr/local/lib/python2.0/rfc822.py, line 530, in getaddress File /usr/home/khine/usr/local/lib/python2.0/rfc822.py, line 510, in gotonext TypeError: len() of unsized object The application this is from is ETailer and I have checked against zope 3.2.0 which works correctly. Thanks for all your help Regards Norman