@dbx-tools/shared-email

Browser-safe email schemas and inferred types.

Import this package when a UI, Mastra tool schema, server route, or test needs to validate the same email payloads that @dbx-tools/email sends.

Key features:

• Shared EmailMessage contract for generated email drafts and direct sends.
• Attachment schema that supports inline content, file paths, URLs, encoding, and content-type hints.
• Send-result schema for SMTP and outbox responses.
• Sender-options schema for AppKit routes that expose allowed From values to a browser client.
• Model/tool-friendly schemas that avoid JSON Schema constraints known to cause problems with some serving endpoints.

Validate A Drafted Message

import { email, type EmailMessage } from "@dbx-tools/shared-email";

const message: EmailMessage = email.emailMessageSchema.parse({
  to: ["[email protected]"],
  subject: "Report",
  body: "# Done\nThe report is attached.",
  attachments: [{ filename: "report.csv", content: "a,b\n1,2\n" }],
});

The message schema covers recipients, subject, Markdown body, and attachments. Attachments can carry inline content, a local path, a URL, encoding metadata, and content type hints.

Validate Send Results

const result = email.emailResultSchema.parse(await sendResponse.json());

emailResultSchema is the shared shape for SMTP sends and outbox writes. Use it for approval UI state and test assertions.

Render Sender Choices

const senders = email.emailSendersSchema.parse(
  await fetch("/api/email/senders").then((r) => r.json()),
);

The sender schema describes the concrete From choices for the current user, the default sender, and whether the list is restricted by policy.

Module

• email - emailAttachmentSchema, emailMessageSchema, emailResultSchema, emailSendersSchema, and flat inferred types: EmailAttachment, EmailMessage, EmailResult, and EmailSenders.

The schemas intentionally avoid array .min() constraints so they can be reused as model/tool JSON schemas for serving endpoints that reject minItems.