[Buildbot-devel] Connecting to a remote server without TLS?

[exarkun at twistedmatrix.com]

On 11:26 am, bradh at frogmouth.net wrote:
>Hi,
>
>It looks like the MailNotifier can only authenticate to a remote server 
>if TLS
>is enabled. That isn't the case for me - I need to authenticate, but 
>can't use
>TLS.
>
>2010-06-18 07:20:07-0400 [ESMTPSender,client] Unhandled error in 
>Deferred:
>2010-06-18 07:20:07-0400 [ESMTPSender,client] Unhandled Error
>        Traceback (most recent call last):
>        Failure: twisted.mail.smtp.TLSRequiredError: 502 Server does not
>support secure communication via TLS / SSL
>        <<< 250-AUTH=CRAM-MD5
>        <<< 250-ENHANCEDSTATUSCODES
>        <<< 250-8BITMIME
>        <<< 250 DSN
>
>Is there any way to do this? I tried to hack in support, but it looks 
>like
>ESMTPSender always wants to use TLS:
>    def auth_sendmail(self, s, recipients):
>        auth_result = defer.Deferred()
>
>        auth_factory = ESMTPSenderFactory(
>            self.smtpUser, self.smtpPassword,
>            self.fromaddr, recipients, StringIO(s),
>            auth_result)


ESMTPSenderFactory accepts two more arguments: requireAuthentication and 
requireTransportSecurity.  They both default to True.
>
>        reactor.connectTCP(self.relayhost, self.smtpPort, auth_factory)
>
>        return auth_result
>
>Suggestions (that don't involve SMTP server reconfiguration :-)) would 
>be most
>appreciated.

Jean-Paul