I try to send a mail to a user from a form. When I type my mail in the dtml-code, there is no problem but when I intend to use <dtml-var name="mail">, Zope generate this error : Error Type: TypeError Error Value: len() of unsized object I have try to use smtphost tag instead of mailhost but the error generated is the same. Is it a problem of proxy,port number, or user's permissions which could'nt send mail, or only a syntax error?? If somebody know the answer... Thanks in advance, William Here is the code I wrote : Form (DTML document) <form action="sendMailUser"> L'image que vous avez soumise, ainsi que son contenu, vont maintenant être contrôlés par nos managers.<br> Saisissez votre e-mail si vous désirez être tenu au courant de l'étape de mise en ligne.<br> Name : <input name=name size=40> Email : <input name=mail size=40> <input type="submit" value="Valider"> </form> sendMailUser(DTML method) <dtml-sendmail mailhost="MailHost"> To: "wgarcia@esrf.fr" From: <dtml-var name="mail"> Subject: ESRF : Image Name: <dtml-var name="name"> Email:<dtml-var name="mail"> Order: Soumission en cours </dtml-sendmail> Traceback (innermost last): File /zope/Zope-2.5.0-solaris-2.6-sparc/lib/python/ZPublisher/Publish.py, line 150, in publish_module File /zope/Zope-2.5.0-solaris-2.6-sparc/lib/python/ZPublisher/Publish.py, line 114, in publish File /zope/Zope-2.5.0-solaris-2.6-sparc/lib/python/Zope/__init__.py, line 159, in zpublisher_exception_hook (Object: recherche_indexation) File /zope/Zope-2.5.0-solaris-2.6-sparc/lib/python/ZPublisher/Publish.py, line 98, in publish File /zope/Zope-2.5.0-solaris-2.6-sparc/lib/python/ZPublisher/mapply.py, line 88, in mapply (Object: sendMailUser) File /zope/Zope-2.5.0-solaris-2.6-sparc/lib/python/ZPublisher/Publish.py, line 39, in call_object (Object: sendMailUser) File /zope/Zope-2.5.0-solaris-2.6-sparc/lib/python/OFS/DTMLMethod.py, line 127, in __call__ (Object: sendMailUser) File /zope/Zope-2.5.0-solaris-2.6-sparc/lib/python/DocumentTemplate/DT_String.py, line 473, in __call__ (Object: sendMailUser) File /zope/Zope-2.5.0-solaris-2.6-sparc/lib/python/Products/MailHost/SendMailTag.py, line 116, in render (Object: MailHost) File /zope/Zope-2.5.0-solaris-2.6-sparc/lib/python/Products/MailHost/MailHost.py, line 156, in send (Object: MailHost) File /zope/Zope-2.5.0-solaris-2.6-sparc/lib/python/Products/MailHost/MailHost.py, line 201, in _send (Object: MailHost) File /opt/Python-2.1.3/lib/python2.1/smtplib.py, line 479, in sendmail File /opt/Python-2.1.3/lib/python2.1/smtplib.py, line 361, in mail File /opt/Python-2.1.3/lib/python2.1/smtplib.py, line 122, in quoteaddr File /opt/Python-2.1.3/lib/python2.1/rfc822.py, line 475, in parseaddr File /opt/Python-2.1.3/lib/python2.1/rfc822.py, line 520, in getaddrlist File /opt/Python-2.1.3/lib/python2.1/rfc822.py, line 528, in getaddress File /opt/Python-2.1.3/lib/python2.1/rfc822.py, line 508, in gotonext TypeError: (see above)