AWS – Amazon WorkMail now supports invoking Lambdas to fetch availability (free/busy)

Amazon WorkMail now supports invoking AWS Lambda for user availability, through Custom Availability Provider Lambdas (CAP Lambdas). CAP Lambdas are a new way for WorkMail to get availability information from external availability sources. A customer can use these CAP Lambdas to give WorkMail access to availability information for users on other calendaring providers they own, even if their endpoints are private, or if they do not have an Exchange Web Services (EWS) endpoint.

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