// Send emails via SMTP or Feishu/Lark Mail. Triggers: send email, 发邮件, email to, 发送邮件, mail, send mail.
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| name | send-email |
| description | Send emails via SMTP or Feishu/Lark Mail. Triggers: send email, 发邮件, email to, 发送邮件, mail, send mail. |
This skill provides the send_email tool for sending emails via SMTP or Feishu/Lark Mail. It is a standalone binary with no LLM dependencies -- pure networking only.
Call send_email with the following parameters:
"smtp" or "feishu". If omitted, the tool auto-detects based on which environment variables are present.true, the body parameter is treated as HTML content. For SMTP this sends a multipart/alternative message with both plain text and HTML parts. For Feishu the body is sent as HTML directly.Sends email via any SMTP server (Gmail, Outlook, custom, etc.) using TLS.
Required environment variables:
| Variable | Description | Example |
|---|---|---|
SMTP_HOST | SMTP server hostname | smtp.gmail.com |
SMTP_PORT | SMTP server port (465 for implicit TLS, 587 for STARTTLS) | 587 |
SMTP_USERNAME | SMTP login username | user@gmail.com |
SMTP_PASSWORD | SMTP login password or app-specific password | abcdefghijklmnop |
SMTP_FROM | Sender email address | user@gmail.com |
Sends email via the Feishu (or Lark) Open API using a tenant access token.
Required environment variables:
| Variable | Description | Example |
|---|---|---|
LARK_APP_ID | Feishu/Lark application ID | cli_a9150c716078c07e |
LARK_APP_SECRET | Feishu/Lark application secret | IrPGLtOq... |
LARK_FROM_ADDRESS | Sender email address in Feishu Mail | sender@company.com |
Optional environment variable:
| Variable | Description | Default |
|---|---|---|
LARK_REGION | Set to "global" or "lark" to use open.larksuite.com; otherwise uses open.feishu.cn | feishu |
If provider is not specified in the tool call:
SMTP_HOST is set, uses SMTP.LARK_APP_ID is set, uses Feishu.{
"to": "recipient@example.com",
"subject": "Meeting Tomorrow",
"body": "Hi, just a reminder about our meeting tomorrow at 10am."
}
{
"to": "recipient@example.com",
"subject": "Weekly Report",
"body": "<h1>Weekly Report</h1><p>All tasks completed.</p>",
"provider": "feishu",
"html": true
}
{
"to": "recipient@example.com",
"subject": "Hello",
"body": "Plain text content here.",
"provider": "smtp"
}