I get this traceback when I use the sendmail tag: Error Type: TypeError Error Value: len() of unsized object Traceback (innermost last): File /home/www/zope/new/lib/python/ZPublisher/Publish.py, line 223, in publish_module File /home/www/zope/new/lib/python/ZPublisher/Publish.py, line 187, in publish File /home/www/zope/new/lib/python/Zope/__init__.py, line 226, in zpublisher_exception_hook (Object: SupportManageHandler) File /home/www/zope/new/lib/python/ZPublisher/Publish.py, line 171, in publish File /home/www/zope/new/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: index_html) File /home/www/zope/new/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: index_html) File /home/www/zope/new/lib/python/OFS/DTMLDocument.py, line 199, in __call__ (Object: index_html) File /home/www/zope/new/lib/python/DocumentTemplate/DT_String.py, line 544, in __call__ (Object: index_html) File /home/www/zope/new/lib/python/Products/MailHost/SendMailTag.py, line 189, in render (Object: MailHost) File /home/www/zope/new/lib/python/Products/MailHost/MailHost.py, line 231, in send (Object: MailHost) File /home/www/zope/new/lib/python2.1/smtplib.py, line 481, in sendmail File /home/www/zope/new/lib/python2.1/smtplib.py, line 363, in mail File /home/www/zope/new/lib/python2.1/smtplib.py, line 122, in quoteaddr File /home/www/zope/new/lib/python2.1/rfc822.py, line 475, in parseaddr File /home/www/zope/new/lib/python2.1/rfc822.py, line 520, in getaddrlist File /home/www/zope/new/lib/python2.1/rfc822.py, line 528, in getaddress File /home/www/zope/new/lib/python2.1/rfc822.py, line 508, in gotonext TypeError: (see above) Can anybody point me in the right direction? -TIA- Stephan