Reopened Issue: 501 Parameter size is not recognised [5557]

The following python 2.5 script:
 
import smtplib
s=smtplib.SMTP('localhost',25)
tolist=['one@one.org']
msg='''
From: Me@my.org
Subject: testin'...
 
This is a test '''
s.sendmail("me@my.org",tolist,msg)
s.quit()
 
 
Generates the following smtp4dev log:
 
220 localhost smtp4dev ready
ehlo [10.0.5.33]
250-Nice to meet you.
250-8BITMIME
250-AUTH=CRAM-MD5 PLAIN LOGIN ANONYMOUS
250-AUTH CRAM-MD5 PLAIN LOGIN ANONYMOUS
250 SIZE
mail FROM:<me@my.org> size=53
501 Parameter size is not recognised
rset
 
 
All options in smtp4dev are defaults.