### Install EMailSender via PlatformIO

Source: https://github.com/xreef/emailsender/blob/master/README.md

Add the library dependency to your platformio.ini file.

```ini
lib_deps = 
    xreef/EMailSender@^4.1.3
```

--------------------------------

### Enable Debug Mode

Source: https://github.com/xreef/emailsender/blob/master/README.md

Uncomment these definitions in EMailSenderKey.h to output SMTP communication to the Serial Monitor.

```cpp
#define EMAIL_SENDER_DEBUG
#define DEBUG_PRINTER Serial
```

--------------------------------

### Send Simple Email from ESP32

Source: https://github.com/xreef/emailsender/blob/master/README.md

Basic implementation for sending an email via Gmail SMTP on an ESP32 device.

```cpp
#include <WiFi.h>
#include <EMailSender.h>

const char* ssid = "YOUR_SSID";
const char* password = "YOUR_PASSWORD";

// Gmail SMTP configuration
EMailSender emailSend("your.email@gmail.com", 
                      "your_app_password",
                      "your.email@gmail.com", 
                      "Your Name",
                      "smtp.gmail.com", 
                      587);  // Port 587 for STARTTLS

void setup() {
  Serial.begin(115200);
  
  // Connect to WiFi
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("\nWiFi Connected!");
  
  // Prepare email message
  EMailSender::EMailMessage message;
  message.subject = "Test Email";
  message.message = "Hello from ESP32!";
  
  // Send email
  EMailSender::Response resp = emailSend.send("recipient@example.com", message);
  
  Serial.println("Sending status: ");
  Serial.println(resp.code);
  Serial.println(resp.desc);
  Serial.println(resp.status);
}

void loop() {
  // Nothing here
}
```

--------------------------------

### Send HTML Email to Multiple Recipients

Source: https://github.com/xreef/emailsender/blob/master/README.md

Configure message MIME type to HTML and send to an array of recipients.

```cpp
EMailSender::EMailMessage message;
message.subject = "HTML Email Test";
message.message = "<h1>Hello!</h1><p>This is an <b>HTML</b> email.</p>";
message.mime = MIME_TEXT_HTML;  // Set MIME type to HTML

// Multiple recipients
const char* recipients[] = {
  "recipient1@example.com",
  "recipient2@example.com",
  "recipient3@example.com"
};

EMailSender::Response resp = emailSend.send(recipients, 3, message);
```

--------------------------------

### Send Email with CC and BCC

Source: https://github.com/xreef/emailsender/blob/master/README.md

Specify counts for To, Cc, and Bcc recipients in the send method.

```cpp
// Array with To, Cc, and Bcc addresses
const char* allRecipients[] = {
  "to@example.com",      // To (1)
  "cc@example.com",      // Cc (1)
  "bcc@example.com"      // Bcc (1)
};

// send(recipients, numTo, numCc, numBcc, message)
EMailSender::Response resp = emailSend.send(allRecipients, 1, 1, 1, message);
```

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