Hello,
Thanks for reporting the issue. I can confirm that we are aware of the issue,
and it is mitigated for now. There was a change in SMTP authentication flow
which inadvertently caused excessive retries as a result. The mitigation was
applied yesterday so you should see the traffic going do
Reply and ask them to provide temporary mitigation to the IP range. If
they say they can't, just reply and ask for it again. Repeat as
necessary. I promise it's okay, this is an intended workflow.
On 2023-08-17 16:41, Dan Mahoney (Gushi) via mailop wrote:
Hey there all.
Dayjob (ISC -- BIN
Hi Dan,
To my understanding, the Hotmail side and the Microsoft 365 side
(protection.outlook.com) have different blocklists and different teams managing
them. What has changed recently is (I think I saw posted here) that Hotmail
flow is now getting routed through the protection.outlook.com inf
Hey there all.
Dayjob (ISC -- BIND, F-root, DHCP, those guys) just spun up a new ip block
to put a few F&F/Employee VMs on. We are the ISP -- this is our netblock
space. We've owned this block for a while, just haven't used it recently,
and we've never really used it for *any* spam sending p
