Send Email Attachments without Storing Files

Previously, sending email attachments required hosting files at a URL. This worked well for static files, but created friction for dynamic content like PDFs (invoices, reports, tickets), requiring temporary storage infrastructure and cleanup overhead.

We’re adding a simpler way to attach files to your emails: pass base64-encoded content directly in your send request. You no longer need to host transient or dynamically generated files elsewhere — just include them as base64-encoded content directly in your send request. This feature also works seamlessly alongside existing URL-based attachments.

How It Works

For full details and implementation examples of sending email attachments via base64 content, please see our documentation:

• Send Emails → Attachments
• API Reference: options.email.attachments