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Re: [ietf-smtp] SMTP Greylisting Retry Hints + PRDR

2019-02-06 18:36:39
On Wed, 06 Feb 2019 21:47:58 +0000, Ð?илÑ?н Ð?алаÑ?зов said:

In any case, your draft shall state, if not included already, is that on

421|451 â?¦ retry=00:00:00

after RCPT TO: the client is supposed really soon to send another MAIL FROM: 
followed by that RCPT.

After 4 decades of seeing programmers do unexpected things with sloppy specs, I
have to ask.. :)

Is the retry permitted to happen *later in the same connection*? And if so, is a
new EHLO or RSET required before doing so?

(and yes I'm sure that the same spamware that doesn't wait for the 220 before
sending an EHLO will retry in the same connection given half a chance...)

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