Network connectivity in the Microsoft 365 Admin Center preview available

Hi, gave the connectivity tool a try on our network and tenant, most tests complete successfully, however the TCP connection test fails, 2 of the urls seem to be accountable for, 'account.office.net' seems to be inaccessible (But has been allowed/excepted on our proxy, proven too) and 'smtp.office365.com' is blocked on port 587 it seems (Likely our ISP), but 25 is open for it. The URLs for SharePoint that it's calculated are incorrect too, despite putting in our tenant domain name at the start of the test as below. As well we seem to have 100% packet loss showing on the Test for Microsoft Teams, but this might be erroneous as Teams itself is working fine. Looking forward to using this to help ensure connectivity is working as intended 🙂

EDIT : If I put our onmicrosoft.com domain in instead, then we only get 2 fails under TCP Connection instead for 'smtp.office365.com' and 'quicktips.skypeforbusiness.com'