Dear customers,

We will be adding additional resources to this SpamTitan cloud at 10 am GMT on the 9th of March. This will not cause any server downtime however there is the possibility of one of the secondary IPs becoming rate limited by Microsoft - in order to prevent any potential disruption please add the below IPs to your existing inbound connector and any firewalls you may have in place:

3.130.28.189

13.59.41.92 
13.58.252.85 
3.129.147.11

The connector should already contain theses IPs:

3.134.134.92

18.216.227.84 

18.189.8.252  

3.140.150.54 

3.22.148.152 

If require instructions on how to set up a connector please find the relevant documentation linked below to assist you:
Locking Down Your Office 365 Mail Server 

Ensuring Your Email is Not Marked as Spam in Office 365 

If you have any further queries please do open a ticket and we will be happy to help,

Kind Regards, 
The CyberSentriq Support Team