On 3/24/23 1:24 AM, Renaud Allard via mailop wrote:
I would say, that's called greylisting. But with a changing envelope, the message has no chances to pass any greylisting process. The behaviour from mailgun would make them unable to pass any kind of greylisting anywhere.
That's one of the advantages of NoListing (TCP reset or timeout on high priority / low numbered MX) in that it would be compatible with this.
-- Grant. . . . unix || die
smime.p7s
Description: S/MIME Cryptographic Signature
_______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
