All colleagues are blocked for receiving emails and viewing published content
Our IT department has followed the trace. The emails arrive at the mailbox of colleagues but are immediately quarantined and a bit later blocked. Microsoft has look at the email and it was considered as clean, but it is still not working. The second issue of colleagues connected to our global network not able to see any published page is also still a mystery. Anybody ideas?
These problems both sound like your IT company has very strict cyber security. The spam filter sensitivity will be controlled by your mail provider (typically your IT support company, or at least controlled by them,) and the inability to view your web pages will be controlled by your IT provider again on the firewall.