On Fri, 4 Sep 2020 08:34:15 +0100, Laura Atkins via mailop <[email protected]>
wrote:
>Microsoft doesnt just block new IP addresses for being new.
Actually, there was a mechanism in place when I worked there that would refuse
traffic from an IP if
(a) no traffic had ever been received from it; and
(b) there had been signifcant spam traffic from other IPs in that /24 at some
time.
I handled four or five delist requests for that BL per week. Whether that is
still in place many years later, I can only speculate. The logic for
implementing such a mechanism is weak, but the cost of removing it might be
significant.
mdr
--
"There are no laws here, only agreements."
-- Masahiko
_______________________________________________
mailop mailing list
[email protected]
https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
