On of our service providers, Nylas, upgraded from API v2 to v3 to enhance performance, security, and user experience. This transition requires end users to re-authenticate their accounts.
We apologize for the inconvenience and realize it's annoying to have to re-authenticate.
This upgrade brings enhanced security and some performance benefits. The new authentication methods in v3 comply with the latest OAuth 2.0 standards, providing a more secure connection between user accounts and applications. 
Re-authentication is necessary to implement these improvements, ensuring that users benefit from the enhanced features and security measures introduced in API v3.
Please don't hesitate to reach out to us if you have any questions: [email protected]