Allison Vollmann added the comment:
i believe which the parameter "msg" must be referenced as a string type when
called "sendmail" nor as an MIME[Message, Multipart, Text, Base, Audio]
and this is obvious way to do it. but i'm not Dutch :-)
New submission from Allison Vollmann :
When call SMTP.sendmail (with simple sendmail local sent and with smtp auth),
the follow exception be raised (with debug output):
send: 'mail FROM: size=5\r\n'
reply: '250 2.1.0 Ok\r\n'
reply: retcode (250); Msg: 2.1.0 Ok
send: '
