Message 220754 - Python tracker

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Author	zvyn
Recipients	barry, jesstess, pitrou, r.david.murray, zvyn
Date	2014年06月16日.20:27:56
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1402950477.07.0.805297062536.issue21783@psf.upfronthosting.co.za>

Content
Sending HELO or EHLO more then once causes smtpd.SMTPChannel to respond with b'503 Duplicate HELO/EHLO\r\n' (see Lib/test/test_smtpd.py:124 for an example). My interpretation of RFC 821, section 4.1.1.5 is that multiple HELO commands are fine outside a mail transaction and a second HELO is eauivalent to a RSET during a mail transaction (undoing any changes made by previous greetings). I would propose to reject greetings during mail transactiond (thats what RSET is for) and else accept them. The question is how we should handle backwards compatibility here. I am willing to work on this right after #21725.

Content

Sending HELO or EHLO more then once causes smtpd.SMTPChannel to respond with b'503 Duplicate HELO/EHLO\r\n' (see Lib/test/test_smtpd.py:124 for an example).
My interpretation of RFC 821, section 4.1.1.5 is that multiple HELO commands are fine outside a mail transaction and a second HELO is eauivalent to a RSET during a mail transaction (undoing any changes made by previous greetings).
I would propose to reject greetings during mail transactiond (thats what RSET is for) and else accept them. The question is how we should handle backwards compatibility here.
I am willing to work on this right after #21725.

History
Date	User	Action	Args
2014年06月16日 20:27:57	zvyn	set	recipients: + zvyn, barry, pitrou, r.david.murray, jesstess
2014年06月16日 20:27:57	zvyn	set	messageid: <1402950477.07.0.805297062536.issue21783@psf.upfronthosting.co.za>
2014年06月16日 20:27:57	zvyn	link	issue21783 messages
2014年06月16日 20:27:56	zvyn	create

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