We have the same issue with 46.21.145.98.
SMG blocks all the mail from this domain with verdict: Global bad sender.
In the IP reputation tool the global bad sender box is checked and you can go to the request removal page.
On the ip reputation page, you will get the message no negative reputation for that IP.
On the IP reputation lookup page on the SMG i see some strange behaviour:
I see the global bad sender box checked and the following local status:
MX2 - TC5 - Scanner Reject None 0% 9
MX1 - TC4 - Scanner and Contr... Reject None 0% 9
If i click find again the checkbox is not checked anymore and also the local status gives the filter normally action.
If i click find again then the above "wrong" info is showed again.
And so on
And so on