I've a big problem with smtphost and dtml-sendmail

I encountered this problem when i ran this dtml codes:

<dtml-sendmail smtphost="mail.mysmtphost.net"> To: <myaddress@mysmtphost.net> Message: I wish to see U later </dtml-sendmail>

Error Type: SMTPSenderRefused Error Value: (505, 'Authentication required', 'myaddress@mysmtphost.net')

I've the problem: the smtphost needed id and pwd but i don't know how send it! Can you say me a solutions please?

Massimiliano

smtphost/sendmail do not support authentication. The easy approach may be to send your message from Zope to the "localhost" sendmail and then validating this under sendmail and the underlying operating system security methods and procedures (tcp wrappers, sendmail rules, firewalls, etc.) Of course you should validate at a higher level within Zope which users are allowed to send email.