Autodiscover service will be used for the first-time configuration of the Hybrid environment (when using the HCW) and for ongoing communication between the On-Premise and the cloud environment.For this reason, it is critical to verify and check the following sections that relate to the Autodiscover services: We will need to verify that the Autodiscover record for the organization public domain is published and pointing to Exchange On-Premise server.
Looking at the Exchange 2013 transport architecture there are multiple services involved.
In other words: in case that the current Exchange On-Premise Autodiscover is based on an SRV DNS record, you will need to change\update this configuration to a “standard Auto Discover configuration” that is implemented by using A record that points to the public IP address of the Exchange On-Premise server.
You’d also need to include these records in the SAN certificate.
Use our software tools to do ip address lookups and reverse lookups.
Some of the scripts have asp source code, and some include visual basic (vb) versions.
In some scenario, the Exchange On-Premise Autodiscover configuration is based on SRV record.