Configuration

Block direct delivery to @onmicrosoft.com addresses in a hybrid environment

UPDATE: [11/20/2018] I had an error in the transport rule configuration in the last example, as well as a note that a TR would NDR external traffic.  I have this post accordingly.

We’re all familiar with how Office 365 tenants work–when you spin up a new Office 365 tenant, you get a managed domain (tenant.onmicrosoft.com). … [ Continue reading ]

Configuration

Disable Skype SKUs across all users

This week, I was presented with a question from a partner who was in the middle of the Skype for Business portion of a larger merger and acquisition migration project. The customer had enabled the Skype for Business license for all users in the tenant (including users who hadn’t migrated for other domains and forests), and since neither the hybrid configuration nor DNS were complete, messages and calls were undeliverable. … [ Continue reading ]