package main

import (
	"fmt"
	"net/smtp"
)

func sendEmail(hostname, username, password, to, from, subject, message string, port int) error {
	// Set up authentication information.
	auth := smtp.PlainAuth("", username, password, hostname)

	// Connect to the server, authenticate, set the sender and recipient,
	// and send the email all in one step.

	err := smtp.SendMail(
		fmt.Sprintf("%s:%d", hostname, port),
		auth,
		from,
		[]string{to},
		[]byte(fmt.Sprintf("Content-Type: text/plain; charset=UTF-8\r\nFrom: %s\r\nTo: %s\r\nSubject: %s\r\n\r\n%s\r\n", from, to, subject, message)),
	)
	if err != nil {
		return err
	}

	return nil
}