Author zvyn
Recipients barry, jesstess, pitrou, r.david.murray, zvyn
Date 2014-06-16.20:27:56
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Message-id <1402950477.07.0.805297062536.issue21783@psf.upfronthosting.co.za>
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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.
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Date User Action Args
2014-06-16 20:27:57zvynsetrecipients: + zvyn, barry, pitrou, r.david.murray, jesstess
2014-06-16 20:27:57zvynsetmessageid: <1402950477.07.0.805297062536.issue21783@psf.upfronthosting.co.za>
2014-06-16 20:27:57zvynlinkissue21783 messages
2014-06-16 20:27:56zvyncreate