The ITI Systems team has successfully disabled SSL Offloading on our load balancer and enabled SSL Bridging in an effort to resolve a few different issues including Free/Busy sharing from O365 to on-prem.
Please let the service desk know if you are experiencing any issues.
The ITI Systems team has applied the March Security CU to our Sykpe for Business environment.
Changes to versions were:
SfB Core Components updated to 6.0.9319.544 from 6.0.9319.537
XMPP Translating Gateway Proxy updated to 6.0.9319.516 from 6.0.9319.0
SfB Web Application updated to 6.0.9319.544 from 6.0.9319.537
Exchange Online was updated to enable Modern Authentication (OAUTH2). The Office 365 client has picked up the configuration and is using OAUTH2. Please report any email authentication issues to the service desk.
Impact: change to authentication protocol.
Affected Applications: Email clients for Office 365.