twisted mail server - SMTP AUTH extension not supported

[Tung Wai Yip]

Hello, I have no experience in Twisted. However I'm looking for a
sendmail replacement after my exim died for no apparent reason. I bet
a python based MTA would be more easy to configure and manage. Do you
have any recommendation? Is there a lot of work to setup twisted as a
MTA?

tung

On 30 Dec 2003 11:05:53 -0800, cartermark46 at ukmail.com (Mark Carter)
wrote:

>I'm trying to create a mail server in Twisted.
>
>I either get 
>SMTPSenderRefused
>or 
>SMTPException: SMTP AUTH extension not supported by server. 
>
>What do I need to do to get it to work?
>
>
>--- Here is the server:
>
>from twisted.internet import reactor
>
>from twisted import mail
>import twisted.mail.mail
>import twisted.mail.maildir
>
>service = mail.mail.MailService('ExampleMail')
>smtp = service.getSMTPFactory()
>pop3 = service.getPOP3Factory()
>
>domain = mail.maildir.MaildirDirdbmDomain(service, '/temp')
>domain.addUser('salvador', 'gala')
>service.addDomain('dali', domain)
>
>reactor.listenTCP(25, smtp , interface='dali')
>reactor.listenTCP(110, pop3 , interface='dali')
>
>reactor.run()
>
>--- Here is the client that tries to send an email:
>
>import smtplib
>from email.MIMEText import MIMEText
>addr = 'salvador at dali'
>
>msg = MIMEText('Body of message')
>msg['From'] = addr 
>msg['Subject'] = 'Note to myself'
>msg['To'] = addr
>
>server = smtplib.SMTP('dali')
>server.login('salvador', 'gala') # see note 1
>server.sendmail(addr, addr ,msg.as_string())
>server.quit()
>
>--- Notes:
>
>1. If I keep in the line:
>server.login('salvador', 'gala') # see note 1
>the client complains:
>    server.login('salvador', 'gala')
>  File "C:\Python23\lib\smtplib.py", line 546, in login
>    raise SMTPException("SMTP AUTH extension not supported by
>server.")
>SMTPException: SMTP AUTH extension not supported by server.
>
>If I comment it out, the client complains:
>SMTPSenderRefused: (451, 'Requested action aborted: error in
>processing', 'salvador at dali')
>and the server prints the message:
>Failure: twisted.cred.error.UnhandledCredentials: No checker for
>twisted.cred.credentials.IAnonymous,
>twisted.cred.credentials.ICredentials
>... smtp.py:553: DeprecationWarning:
> Returning None from validateFrom is deprecated. Raise
>smtp.SMTPBadSender
>instead
> "Raise smtp.SMTPBadSender instead", DeprecationWarning"