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[ietf-smtp] SMTP Greylisting Retry Hints

2019-02-05 10:11:48
Which smtp servers and client follow or honor Greylist SMTP retry hint for rescheduling retries?

I wrote this draft a while ago, wondering if any software beside mine, Wildcat! SMTP, supports it?

It has been every efficient and it has helped minimized the retry attempts for delivery of mail to 2 with the shortest period.


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