gistfile1.txt

[richard@zorin trunk]$ twistd --nodaemon mail  --maildirdbmdomain=example.com=/tmp/example.com --alias=/tmp/example.com/aliases --user=joe=password --user=bob=password 
2013-08-19 14:23:38+0100 [-] Log opened.
2013-08-19 14:23:38+0100 [-] twistd 13.1.0 (/usr/bin/python 2.7.5) starting up.
2013-08-19 14:23:38+0100 [-] reactor class: twisted.internet.epollreactor.EPollReactor.
2013-08-19 14:23:38+0100 [-] POP3Factory starting on 8110
2013-08-19 14:23:38+0100 [-] Starting factory <twisted.mail.protocols.POP3Factory instance at 0x15f6050>
2013-08-19 14:23:38+0100 [-] SMTPFactory starting on 8025
2013-08-19 14:23:38+0100 [-] Starting factory <twisted.mail.protocols.SMTPFactory instance at 0x15f64d0>
2013-08-19 14:23:42+0100 [twisted.mail.protocols.SMTPFactory] Connection from IPv4Address(TCP, '127.0.0.1', 35944)
2013-08-19 14:24:19+0100 [SMTP,0,127.0.0.1] Unhandled Error
	Traceback (most recent call last):
	  File "/home/richard/projects/Twisted/trunk/twisted/mail/smtp.py", line 687, in do_RCPT
	    d = defer.maybeDeferred(self.validateTo, user)
	  File "/home/richard/projects/Twisted/trunk/twisted/internet/defer.py", line 139, in maybeDeferred
	    result = f(*args, **kw)
	  File "/home/richard/projects/Twisted/trunk/twisted/mail/smtp.py", line 943, in validateTo
	    return self.delivery.validateTo(user)
	  File "/home/richard/projects/Twisted/trunk/twisted/mail/protocols.py", line 64, in validateTo
	    return defer.maybeDeferred(d.exists, user)
	--- <exception caught here> ---
	  File "/home/richard/projects/Twisted/trunk/twisted/internet/defer.py", line 139, in maybeDeferred
	    result = f(*args, **kw)
	  File "/home/richard/projects/Twisted/trunk/twisted/mail/maildir.py", line 148, in exists
	    aliases = a.resolve(self.alias, memo)
	  File "/home/richard/projects/Twisted/trunk/twisted/mail/alias.py", line 437, in resolve
	    r.append(a.resolve(aliasmap, memo))
	  File "/home/richard/projects/Twisted/trunk/twisted/mail/alias.py", line 139, in resolve
	    return self.domain().exists(smtp.User(self.alias, None, None, None), memo)()
	exceptions.TypeError: exists() takes exactly 2 arguments (3 given)
	

gistfile2.txt

[richard@zorin trunk]$ telnet localhost 8025
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 zorin.lan NO UCE NO UBE NO RELAY PROBES
HELO
250 zorin.lan Hello 127.0.0.1, nice to meet you
MAIL FROM: richard@zorin.lan
250 Sender address accepted
RCPT TO: myalias@example.com
451 Requested action aborted: local error in processing