We built Calendar Interop to enable user availability lookups between Google Calendar and Microsoft Exchange. Last summer, we introduced a wide array of improvements to the product, such as simplified setup and troubleshooting, real time updates, and support for both web and mobile. To help our customers improve the security of their coexistence setups, Calendar Interop will now use a restricted set of known IPs to communicate with Exchange servers.
By restricting Calendar Interop to this set of known IPs, G Suite customers can now block all incoming traffic (e.g., by setting up a firewall) to their on-premise Exchange servers, except for requests originating from Calendar Interop.
To see the list of IPv4 and IPv6 addresses that belong to Calendar Interop, check out this Help Center article.
Launch Details
Release track:
Launching to both Rapid Release and Scheduled Release
Editions:
Available to all G Suite editions
Rollout pace:
Full rollout (1–3 days for feature visibility)
Impact:
Admins only
Action:
Admin action suggested/FYI
More Information
Help Center: About Calendar Interop
Launch release calendar
Launch detail categories
Get these product update alerts by email
Subscribe to the RSS feed of these updates
By restricting Calendar Interop to this set of known IPs, G Suite customers can now block all incoming traffic (e.g., by setting up a firewall) to their on-premise Exchange servers, except for requests originating from Calendar Interop.
To see the list of IPv4 and IPv6 addresses that belong to Calendar Interop, check out this Help Center article.
Launch Details
Release track:
Launching to both Rapid Release and Scheduled Release
Editions:
Available to all G Suite editions
Rollout pace:
Full rollout (1–3 days for feature visibility)
Impact:
Admins only
Action:
Admin action suggested/FYI
More Information
Help Center: About Calendar Interop
Launch release calendar
Launch detail categories
Get these product update alerts by email
Subscribe to the RSS feed of these updates