
You can now restrict what your Agent Accounts send. Block sends to specific recipients, domains, or TLDs before they reach the provider — so an autonomous agent can't email the wrong address on its own.

Agent Accounts are Nylas-hosted email and calendar identities that an AI agent owns end-to-end. Create a real [email protected] mailbox through the API, assign policies and rules to guardrail its behavior, and use every existing Nylas endpoint against the new grant.

Compressed webhook delivery for webhooks, SNS, and Pub/Sub; a new message.created.cleaned trigger for Clean Conversations; and a field-name correction on the IMAP sync completed notification.

Updated OpenAPI specs to correctly document nullable fields across Scheduler, Events, Contacts, Availability, Free/Busy, and Attachments APIs.

New Signatures API lets you create, store, and manage reusable HTML email signatures per grant, and attach them automatically when sending messages or creating drafts.

Better scheduler auth error handling, date normalization fixes, and deferred booking ref initialization for private configurations.

Callback URI management, admin auth config fixes, and reduced code duplication across CLI commands.

CLI authentication, disposable email blocking, and authentication reliability improvements.

Hosted auth improvements including plus-sign support in emails, IMAP/SMTP validation logging, and performance optimizations.
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