smtplib.SMTPDataError: (503, 'Error: need RCPT command')

[Barry A. Warsaw]

>>>>> "EvS" == Emile van Sebille <emile at fenx.com> writes:

    EvS> Start with http://www.ietf.org/rfc/rfc821.txt

Better make that RFC 2821!  And note that RFC 2822 is also the latest
revision of that seminal standard.

http://www.faqs.org/rfcs/rfc2821.html
http://www.faqs.org/rfcs/rfc2822.html

-Barry