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

2019-02-08 16:42:02
On 2/7/2019 1:03 PM, valdis(_dot_)kletnieks(_at_)vt(_dot_)edu wrote:
On Thu, 07 Feb 2019 17:56:00 +0000, Jeremy Harris said:
On 07/02/2019 17:47, valdis(_dot_)kletnieks(_at_)vt(_dot_)edu wrote:
On Thu, 07 Feb 2019 10:23:41 -0500, Hector Santos said:
     GreyListing Servers MAY issue multiple and different reply hints per
     RCPT TO in a transaction.

So I can end you a MAIL FROM and 1 RCPT TO, and get back two or
more *different* hints?

No.  One hint per RPCT.

Pay attention.. That's not what Hector's text actually says.  It specifically
says that multiple hints *per rcpt to* are allowed.  It it was one per rcpt,
it should say something like:

MAY issue a different hint for each RCPT TO received.

Thanks for the correction. I did write "Multiple and Different" but of course, not what I meant. Just different per response.

But imagine a "Work vs After-work" or "Busy vs Non-Busy" hours retry load control thing:

  421 After=9am Before=5pm Retry=00:00:55; After=5pm Retry=00:02:00

Lets not go there, but the draft can also suggest to developers to use the first "reply hint" found.


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