# Gmail API — `sendMail.php`
Sends an HTML email from **iperfect.net@gmail.com** via the Gmail API (OAuth2).
`sendMail.php` is a thin HTTP wrapper: it builds an HTML body from the request
parameters and shells out to `sendemail-x64`, a self-contained Linux binary that
holds the OAuth credentials and talks to Google.
```
Endpoint: https://services.iperfect.net/api/gmail-api/sendMail.php
Methods: GET or POST (parameters are read from $_REQUEST)
```
---
## Parameters
| Name | Required | Description |
|-------------|----------|-------------|
| `email` | yes | Recipient address. Multiple recipients may be comma-separated. |
| `subject` | yes | Subject line. |
| `message` | yes | Body content. **HTML is allowed** and is injected as-is into the template. |
| `greetings` | yes | Salutation line rendered in a `` above the message, e.g. `Dear Sir/Madam,`. |
| `attachment` | no | One or more files to attach — an uploaded file, a filename in the server's `attachments/` directory, or an http(s) URL. See [Attachments](#attachments). |
| `format` | no | `json` for a machine-readable response. See [Response](#response). |
| `debug` | no | `1` to include the binary's raw output and the audit-log outcome. |
All four values are inserted into the template below, so `message` and
`greetings` may contain markup:
```html
{greetings}
{message}
```
Every message ends with the **Powered by IPerfect.Net** footer — 10px grey
Verdana above a thin rule. It is styled inline rather than through the
stylesheet above, because a number of mail clients drop `