Nylas lets you control how much data to sync and what data you get webhooks for. Control messages, threads, calendar events, and contacts.
When an account is connected to Nylas, you can decide when Nylas should start syncing the data. For example, you connected your account on December 1, 2020, but you want Nylas to start syncing any data created starting November 1, 2020, and not just data from the account connected date.
Data sync is set at the application level. This means for any accounts you connect to your application, Nylas will sync data based on this setting.