# Email




## [Sign documents in Aamu.app with email OTP or strong authentication](https://aamu.app/blog/posts/sign-documents-in-aamuapp-email-otp-strong-authentication/index.md)

How Aamu.app sends Docs for signature, supports built-in email OTP and Finnish strong authentication through a team-owned Signicat connection, and tracks signer status and evidence.


## [Newsletters in Aamu.app: from subscribers to sending](https://aamu.app/blog/posts/newsletters-in-aamuapp-from-subscribers-to-sending/index.md)

Create newsletters with a Database-backed audience, collect subscribers with an optional signup form, design reusable templates, send issues, and automate the workflow through the Aamu API.