I am meeting several problems about the creation of the file attachment...

Here is the Send_Mail dtml document

<br>

<CENTER><H1>Message Sent</H1>
<br>
<a href="S_Compose_Mail?Domain_Name=&login="><IMG SRC="back" border=0></a></CENTER>

And here is the python smtp.py source file:

def smtp_send(self,smtp_server=None,tolist=None,msg=None,subject=None,fromme=None,file='',REQUEST=None):
smtp=smtplib.SMTP(smtp_server)
msg="Subject: " + subject + "\n\r" +msg
smtp.sendmail(fromme,tolist,msg)
smtp.quit()
s=''

s=s+file.read()
return s

But it deosn't work...

<HTML><HEAD><TITLE>yannick</TITLE></HEAD><BODY BGCOLOR="#FFFFFF">
<TABLE BORDER="0" WIDTH="100%">
<TR>
<TD WIDTH="10%" ALIGN="CENTER">
<STRONG><FONT SIZE="+6" COLOR="#77003B">!</FONT></STRONG>
</TD>
<TD WIDTH="90%"><BR>
<FONT SIZE="+2">System Unavailable</FONT>
<P>This site is currently experiencing technical difficulties.
Please contact the site administrator for more information. For
additional technical information, please refer to the HTML source for this
page. Thank you for your patience.</P>
</TD>
</TR>
</TABLE>

</BODY></HTML>
<!--
Traceback (innermost last):
File C:\Program Files\servel\lib\python\ZPublisher\Publish.py, line 877, in publish_module
File C:\Program Files\servel\lib\python\ZPublisher\Publish.py, line 590, in publish
(Info: /servel/Send_Mail)
File C:\Program Files\servel\lib\python\OFS\DTMLDocument.py, line 212, in __call__
(Object: Send_Mail)
File C:\Program Files\servel\lib\python\OFS\DTMLDocument.py, line 208, in __call__
(Object: Send_Mail)
File C:\Program Files\servel\lib\python\DocumentTemplate\DT_String.py, line 513, in __call__
(Object: Send_Mail)
File C:\Program Files\servel\lib\python\DocumentTemplate\DT_Util.py, line 266, in eval
(Object: Smtp_send_func(smtp_server=Domain_Name,tolist=[support],msg=body,subject=subject,fromme=fromme,file=file,REQUEST=REQUEST))
File <string>, line 0, in ?
File C:\Program Files\servel\lib\python\Products\ExternalMethod\ExternalMethod.py, line 254, in __call__
(Object: CopySource)
(Info: ((), {'subject': '"Et maintenant admire la puissante de feu de ma STATION"', 'smtp_server': 'd032.ml.ucwm.ac.uk', 'REQUEST': form:
subject: '"Et maintenant admire la puissante de feu de ma STATION"'
Domain_Name: 'd032.ml.ucwm.ac.uk'
support: 'wmlyms'
file: <ZPublisher.Publish.FileUpload instance at 964fc20>
login: 'wmlyms'
fromme: 'ah@serveland.com'
body: ' we'

environ:
HTTP_ACCEPT_ENCODING: 'gzip, deflate'
REMOTE_HOST: 'localhost'
PATH_INFO: '/servel/Send_Mail'
CONTENT_LENGTH: '1217'
SERVER_PROTOCOL: 'HTTP/1.0'
CONTENT_TYPE: 'multipart/form-data; boundary=---------------------------7cf3bda36301c0'
PATH_TRANSLATED: 'C:\\NT\\Profiles\\wmlyms.000\\Desktop\\servel\\Send_Mail'
HTTP_HOST: 'localhost:9673'
REQUEST_METHOD: 'POST'
HTTP_COOKIE: 'dtpref_rows="25"; dtpref_cols="90"; tree-s="eJyLjjaMjQUABOIBog"'
SCRIPT_NAME: ''
SERVER_SOFTWARE: 'ZopeHTTP/1.16 Python/1.5.1'
HTTP_ACCEPT_LANGUAGE: 'en-us'
HTTP_ACCEPT: 'image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/msword, application/vnd.ms-excel, application/vnd.ms-powerpoint, */*'
GATEWAY_INTERFACE: 'CGI/1.1'
SERVER_PORT: '9673'
SERVER_NAME: 'media10.ml.uwcm.ac.uk'
HTTP_CONNECTION: 'Keep-Alive'
HTTP_USER_AGENT: 'Mozilla/4.0 (compatible; MSIE 5.0b2; Windows NT)'
REMOTE_ADDR: '127.0.0.1'
HTTP_REFERER: 'http://localhost:9673/servel/S_Compose_Mail?Domain_Name=d032.ml.uwcm.ac.uk&login=wmlyms'

, 'msg': ' we', 'file': <ZPublisher.Publish.FileUpload instance at 964fc20>, 'fromme': 'ah@serveland.com', 'tolist': ['wmlyms']}, (None, None, None, None, None, '', None)))
TypeError: (see above)

If you have managed to read everything, thanks for your patience...

P.S Many thanks for the help I were provided before