diff --git a/config.go b/config.go
index baf4086..2691532 100644
--- a/config.go
+++ b/config.go
@@ -1,33 +1,33 @@
-package main
-
-import (
-	"encoding/json"
-	"os"
-)
-
-// For config file
-type Config struct {
-	SMTPServer   string `json:"smtp_server"`
-	SMTPPort     int    `json:"smtp_port"`
-	SMTPUsername string `json:"smtp_username"`
-	SMTPPassword string `json:"smtp_password"`
-	FromEmail    string `json:"from_email"`
-}
-
-func loadConfig(filePath string) (Config, error) {
-	var config Config
-
-	file, err := os.Open(filePath)
-	if err != nil {
-		return config, err
-	}
-	defer file.Close()
-
-	decoder := json.NewDecoder(file)
-	err = decoder.Decode(&config)
-	if err != nil {
-		return config, err
-	}
-
-	return config, nil
-}
+package main
+
+import (
+	"encoding/json"
+	"os"
+)
+
+// For config file
+type Config struct {
+	SMTPServer   string `json:"smtp_server"`
+	SMTPPort     int    `json:"smtp_port"`
+	SMTPUsername string `json:"smtp_username"`
+	SMTPPassword string `json:"smtp_password"`
+	FromEmail    string `json:"from_email"`
+}
+
+func loadConfig(filePath string) (Config, error) {
+	var config Config
+
+	file, err := os.Open(filePath)
+	if err != nil {
+		return config, err
+	}
+	defer file.Close()
+
+	decoder := json.NewDecoder(file)
+	err = decoder.Decode(&config)
+	if err != nil {
+		return config, err
+	}
+
+	return config, nil
+}
diff --git a/main.go b/main.go
index e1d1daa..0107da5 100644
--- a/main.go
+++ b/main.go
@@ -1,185 +1,185 @@
-package main
-
-import (
-	"flag"
-	"fmt"
-	"log"
-	"os"
-	"strings"
-)
-
-var (
-	// Long-form flags
-	smtpServer string
-	smtpPort   int
-	username   string
-	password   string
-
-	configFile string
-
-	fromEmail string
-	toEmail   string
-
-	subject string
-	body    string
-
-	attachmentsFiles string
-	bodyFile         string
-
-	// Short-form flags
-	smtpServerShort string
-	smtpPortShort   int
-	usernameShort   string
-	passwordShort   string
-
-	configFileShort string
-
-	fromEmailShort string
-	toEmailShort   string
-
-	subjectShort string
-	bodyShort    string
-
-	attachmentsFilesShort string
-	bodyFileShort         string
-)
-
-func init() {
-	// Long-form flags
-	flag.StringVar(&smtpServer, "smtp-server", "", "SMTP server for sending emails")
-	flag.IntVar(&smtpPort, "smtp-port", 587, "SMTP server port")
-	flag.StringVar(&username, "smtp-username", "", "Username for SMTP authentication")
-	flag.StringVar(&password, "smtp-password", "", "Password for SMTP authentication")
-
-	flag.StringVar(&configFile, "config", "", "Path to the SMTP config file")
-
-	flag.StringVar(&fromEmail, "from-email", "", "Email address to send from")
-	flag.StringVar(&toEmail, "to-email", "", "Email addresses that will receive the email, comma-separated")
-
-	flag.StringVar(&subject, "subject", "", "Subject of the email")
-	flag.StringVar(&body, "body", "", "Body of the email")
-
-	flag.StringVar(&attachmentsFiles, "attachments", "", "File paths for attachments, comma-separated")
-	flag.StringVar(&bodyFile, "body-file", "", "File path for email body")
-
-	// Short-form flags
-	flag.StringVar(&smtpServerShort, "s", "", "SMTP server for sending emails (short)")
-	flag.IntVar(&smtpPortShort, "p", 587, "SMTP server port (short)")
-	flag.StringVar(&usernameShort, "u", "", "Username for SMTP authentication (short)")
-	flag.StringVar(&passwordShort, "w", "", "Password for SMTP authentication (short)")
-
-	flag.StringVar(&configFileShort, "c", "", "Path to the SMTP config file (short)")
-
-	flag.StringVar(&fromEmailShort, "f", "", "Email address to send from (short)")
-	flag.StringVar(&toEmailShort, "t", "", "Email addresses that will receive the email, comma-separated (short)")
-
-	flag.StringVar(&subjectShort, "h", "", "Subject of the email (short)")
-	flag.StringVar(&bodyShort, "b", "", "Body of the email (short)")
-
-	flag.StringVar(&attachmentsFilesShort, "af", "", "File paths for attachments, comma-separated (short)")
-	flag.StringVar(&bodyFileShort, "bf", "", "File path for email body (short)")
-}
-
-func main() {
-	flag.Parse()
-
-	// Override long-form flags with short-form flags if set
-	if smtpServerShort != "" {
-		smtpServer = smtpServerShort
-	}
-	if smtpPortShort != 587 {
-		smtpPort = smtpPortShort
-	}
-	if usernameShort != "" {
-		username = usernameShort
-	}
-	if passwordShort != "" {
-		password = passwordShort
-	}
-	if configFileShort != "" {
-		configFile = configFileShort
-	}
-	if fromEmailShort != "" {
-		fromEmail = fromEmailShort
-	}
-	if toEmailShort != "" {
-		toEmail = toEmailShort
-	}
-	if subjectShort != "" {
-		subject = subjectShort
-	}
-	if bodyShort != "" {
-		body = bodyShort
-	}
-	if attachmentsFilesShort != "" {
-		attachmentsFiles = attachmentsFilesShort
-	}
-	if bodyFileShort != "" {
-		bodyFile = bodyFileShort
-	}
-
-	// Load config from file if provided
-	if configFile != "" {
-		config, err := loadConfig(configFile)
-		if err != nil {
-			log.Fatalf("Error loading config file: %v", err)
-		}
-
-		// Override flags with config file values if set
-		if config.SMTPServer != "" {
-			smtpServer = config.SMTPServer
-		}
-		if config.SMTPPort != 0 {
-			smtpPort = config.SMTPPort
-		}
-		if config.SMTPUsername != "" {
-			username = config.SMTPUsername
-		}
-		if config.SMTPPassword != "" {
-			password = config.SMTPPassword
-		}
-		if config.FromEmail != "" {
-			fromEmail = config.FromEmail
-		}
-	}
-
-	// Check if required flags or config values are missing
-	if smtpServer == "" || username == "" || password == "" || fromEmail == "" || toEmail == "" || subject == "" {
-		fmt.Fprintln(os.Stderr, "Error: Required flags or config values are missing.")
-		usage()
-	}
-
-	// Check if either direct input or file path is provided for body
-	if body == "" && bodyFile == "" {
-		fmt.Fprintln(os.Stderr, "Error: Subject and body are required, either directly or through a specified file.")
-		usage()
-	}
-
-	// Read body from files if provided
-	if bodyFile != "" {
-		content, err := os.ReadFile(bodyFile)
-		if err != nil {
-			log.Fatalf("\nError reading body file: %v\n", err)
-		}
-		body = string(content)
-	}
-
-	// Split attachment file paths
-	var attachmentPaths []string
-	if attachmentsFiles != "" {
-		attachmentPaths = strings.Split(attachmentsFiles, ",")
-	}
-
-	// Split recipient email addresses
-	var toEmails []string
-	if toEmail != "" {
-		toEmails = strings.Split(toEmail, ",")
-	}
-
-	if len(toEmails) == 0 {
-		fmt.Fprintln(os.Stderr, "Error: At least one recipient email address is required.")
-		usage()
-	}
-
-	sendEmail(smtpServer, smtpPort, username, password, fromEmail, toEmails, subject, body, bodyFile, attachmentPaths)
-}
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+	"os"
+	"strings"
+)
+
+var (
+	// Long-form flags
+	smtpServer string
+	smtpPort   int
+	username   string
+	password   string
+
+	configFile string
+
+	fromEmail string
+	toEmail   string
+
+	subject string
+	body    string
+
+	attachmentsFiles string
+	bodyFile         string
+
+	// Short-form flags
+	smtpServerShort string
+	smtpPortShort   int
+	usernameShort   string
+	passwordShort   string
+
+	configFileShort string
+
+	fromEmailShort string
+	toEmailShort   string
+
+	subjectShort string
+	bodyShort    string
+
+	attachmentsFilesShort string
+	bodyFileShort         string
+)
+
+func init() {
+	// Long-form flags
+	flag.StringVar(&smtpServer, "smtp-server", "", "SMTP server for sending emails")
+	flag.IntVar(&smtpPort, "smtp-port", 587, "SMTP server port")
+	flag.StringVar(&username, "smtp-username", "", "Username for SMTP authentication")
+	flag.StringVar(&password, "smtp-password", "", "Password for SMTP authentication")
+
+	flag.StringVar(&configFile, "config", "", "Path to the SMTP config file")
+
+	flag.StringVar(&fromEmail, "from-email", "", "Email address to send from")
+	flag.StringVar(&toEmail, "to-email", "", "Email addresses that will receive the email, comma-separated")
+
+	flag.StringVar(&subject, "subject", "", "Subject of the email")
+	flag.StringVar(&body, "body", "", "Body of the email")
+
+	flag.StringVar(&attachmentsFiles, "attachments", "", "File paths for attachments, comma-separated")
+	flag.StringVar(&bodyFile, "body-file", "", "File path for email body")
+
+	// Short-form flags
+	flag.StringVar(&smtpServerShort, "s", "", "SMTP server for sending emails (short)")
+	flag.IntVar(&smtpPortShort, "p", 587, "SMTP server port (short)")
+	flag.StringVar(&usernameShort, "u", "", "Username for SMTP authentication (short)")
+	flag.StringVar(&passwordShort, "w", "", "Password for SMTP authentication (short)")
+
+	flag.StringVar(&configFileShort, "c", "", "Path to the SMTP config file (short)")
+
+	flag.StringVar(&fromEmailShort, "f", "", "Email address to send from (short)")
+	flag.StringVar(&toEmailShort, "t", "", "Email addresses that will receive the email, comma-separated (short)")
+
+	flag.StringVar(&subjectShort, "h", "", "Subject of the email (short)")
+	flag.StringVar(&bodyShort, "b", "", "Body of the email (short)")
+
+	flag.StringVar(&attachmentsFilesShort, "af", "", "File paths for attachments, comma-separated (short)")
+	flag.StringVar(&bodyFileShort, "bf", "", "File path for email body (short)")
+}
+
+func main() {
+	flag.Parse()
+
+	// Override long-form flags with short-form flags if set
+	if smtpServerShort != "" {
+		smtpServer = smtpServerShort
+	}
+	if smtpPortShort != 587 {
+		smtpPort = smtpPortShort
+	}
+	if usernameShort != "" {
+		username = usernameShort
+	}
+	if passwordShort != "" {
+		password = passwordShort
+	}
+	if configFileShort != "" {
+		configFile = configFileShort
+	}
+	if fromEmailShort != "" {
+		fromEmail = fromEmailShort
+	}
+	if toEmailShort != "" {
+		toEmail = toEmailShort
+	}
+	if subjectShort != "" {
+		subject = subjectShort
+	}
+	if bodyShort != "" {
+		body = bodyShort
+	}
+	if attachmentsFilesShort != "" {
+		attachmentsFiles = attachmentsFilesShort
+	}
+	if bodyFileShort != "" {
+		bodyFile = bodyFileShort
+	}
+
+	// Load config from file if provided
+	if configFile != "" {
+		config, err := loadConfig(configFile)
+		if err != nil {
+			log.Fatalf("Error loading config file: %v", err)
+		}
+
+		// Override flags with config file values if set
+		if config.SMTPServer != "" {
+			smtpServer = config.SMTPServer
+		}
+		if config.SMTPPort != 0 {
+			smtpPort = config.SMTPPort
+		}
+		if config.SMTPUsername != "" {
+			username = config.SMTPUsername
+		}
+		if config.SMTPPassword != "" {
+			password = config.SMTPPassword
+		}
+		if config.FromEmail != "" {
+			fromEmail = config.FromEmail
+		}
+	}
+
+	// Check if required flags or config values are missing
+	if smtpServer == "" || username == "" || password == "" || fromEmail == "" || toEmail == "" || subject == "" {
+		fmt.Fprintln(os.Stderr, "Error: Required flags or config values are missing.")
+		usage()
+	}
+
+	// Check if either direct input or file path is provided for body
+	if body == "" && bodyFile == "" {
+		fmt.Fprintln(os.Stderr, "Error: Subject and body are required, either directly or through a specified file.")
+		usage()
+	}
+
+	// Read body from files if provided
+	if bodyFile != "" {
+		content, err := os.ReadFile(bodyFile)
+		if err != nil {
+			log.Fatalf("\nError reading body file: %v\n", err)
+		}
+		body = string(content)
+	}
+
+	// Split attachment file paths
+	var attachmentPaths []string
+	if attachmentsFiles != "" {
+		attachmentPaths = strings.Split(attachmentsFiles, ",")
+	}
+
+	// Split recipient email addresses
+	var toEmails []string
+	if toEmail != "" {
+		toEmails = strings.Split(toEmail, ",")
+	}
+
+	if len(toEmails) == 0 {
+		fmt.Fprintln(os.Stderr, "Error: At least one recipient email address is required.")
+		usage()
+	}
+
+	sendEmail(smtpServer, smtpPort, username, password, fromEmail, toEmails, subject, body, bodyFile, attachmentPaths)
+}
diff --git a/smtp.go b/smtp.go
index 51c8669..72c93f3 100644
--- a/smtp.go
+++ b/smtp.go
@@ -1,42 +1,42 @@
-package main
-
-import (
-	"fmt"
-	"strings"
-
-	"gopkg.in/mail.v2"
-)
-
-// sendEmail constructs and sends an email with the specified HTML body and attachments.
-func sendEmail(smtpServer string, smtpPort int, username string, password string, from string, to []string, subject, body, bodyFile string, attachments []string) error {
-	m := mail.NewMessage()
-
-	// Set the main email parts
-	m.SetHeader("From", from)
-	m.SetHeader("To", to...)
-	m.SetHeader("Subject", subject)
-
-	// Check if the body is provided via a file
-	if bodyFile != "" {
-		m.SetBody("text/html", body)
-	} else {
-		m.SetBody("text/plain", body)
-	}
-
-	// Add attachments
-	for _, attachment := range attachments {
-		m.Attach(attachment)
-	}
-
-	// Set up SMTP information
-	d := mail.NewDialer(smtpServer, smtpPort, username, password)
-
-	// Send the email
-	if err := d.DialAndSend(m); err != nil {
-		fmt.Printf("Error sending email: %v", err)
-		return err
-	}
-
-	fmt.Printf("\nEmail sent successfully to %s from %s\n", strings.Join(to, ", "), from)
-	return nil
-}
+package main
+
+import (
+	"fmt"
+	"strings"
+
+	"gopkg.in/mail.v2"
+)
+
+// sendEmail constructs and sends an email with the specified HTML body and attachments.
+func sendEmail(smtpServer string, smtpPort int, username string, password string, from string, to []string, subject, body, bodyFile string, attachments []string) error {
+	m := mail.NewMessage()
+
+	// Set the main email parts
+	m.SetHeader("From", from)
+	m.SetHeader("To", to...)
+	m.SetHeader("Subject", subject)
+
+	// Check if the body is provided via a file
+	if bodyFile != "" {
+		m.SetBody("text/html", body)
+	} else {
+		m.SetBody("text/plain", body)
+	}
+
+	// Add attachments
+	for _, attachment := range attachments {
+		m.Attach(attachment)
+	}
+
+	// Set up SMTP information
+	d := mail.NewDialer(smtpServer, smtpPort, username, password)
+
+	// Send the email
+	if err := d.DialAndSend(m); err != nil {
+		fmt.Printf("Error sending email: %v", err)
+		return err
+	}
+
+	fmt.Printf("\nEmail sent successfully to %s from %s\n", strings.Join(to, ", "), from)
+	return nil
+}
diff --git a/usage.go b/usage.go
index 8030bd1..e247836 100644
--- a/usage.go
+++ b/usage.go
@@ -1,25 +1,25 @@
-package main
-
-import (
-	"fmt"
-	"os"
-)
-
-func usage() {
-	fmt.Fprintf(os.Stderr, "Usage: %s [options]\n", os.Args[0])
-	fmt.Fprintln(os.Stderr, "")
-	fmt.Fprintln(os.Stderr, "  -s, --smtp-server         SMTP server for sending emails")
-	fmt.Fprintln(os.Stderr, "  -p, --smtp-port           SMTP server port (Default: 587)")
-	fmt.Fprintln(os.Stderr, "  -u, --smtp-username       Username for SMTP authentication")
-	fmt.Fprintln(os.Stderr, "  -w, --smtp-password       Password for SMTP authentication")
-	fmt.Fprintln(os.Stderr, "  -f, --from-email          Email address to send from")
-	fmt.Fprintln(os.Stderr, "  -c, --config          	 Path to the SMTP json config file which replaces the above arguments")
-	fmt.Fprintln(os.Stderr, "  -t, --to-email            Email addresses that will receive the email, comma-separated")
-	fmt.Fprintln(os.Stderr, "  -h, --subject             Subject of the email")
-	fmt.Fprintln(os.Stderr, "  -b, --body	            Body of the email")
-	fmt.Fprintln(os.Stderr, "  -af, --attachments        File paths for attachments, comma-separated")
-	fmt.Fprintln(os.Stderr, "  -bf, --body-file          File path for email body")
-	fmt.Fprintln(os.Stderr, "")
-	fmt.Fprintln(os.Stderr, "  Ensure all required flags are provided.")
-	os.Exit(1)
-}
+package main
+
+import (
+	"fmt"
+	"os"
+)
+
+func usage() {
+	fmt.Fprintf(os.Stderr, "Usage: %s [options]\n", os.Args[0])
+	fmt.Fprintln(os.Stderr, "")
+	fmt.Fprintln(os.Stderr, "  -s, --smtp-server         SMTP server for sending emails")
+	fmt.Fprintln(os.Stderr, "  -p, --smtp-port           SMTP server port (Default: 587)")
+	fmt.Fprintln(os.Stderr, "  -u, --smtp-username       Username for SMTP authentication")
+	fmt.Fprintln(os.Stderr, "  -w, --smtp-password       Password for SMTP authentication")
+	fmt.Fprintln(os.Stderr, "  -f, --from-email          Email address to send from")
+	fmt.Fprintln(os.Stderr, "  -c, --config          	 Path to the SMTP json config file which replaces the above arguments")
+	fmt.Fprintln(os.Stderr, "  -t, --to-email            Email addresses that will receive the email, comma-separated")
+	fmt.Fprintln(os.Stderr, "  -h, --subject             Subject of the email")
+	fmt.Fprintln(os.Stderr, "  -b, --body	            Body of the email")
+	fmt.Fprintln(os.Stderr, "  -af, --attachments        File paths for attachments, comma-separated")
+	fmt.Fprintln(os.Stderr, "  -bf, --body-file          File path for email body")
+	fmt.Fprintln(os.Stderr, "")
+	fmt.Fprintln(os.Stderr, "  Ensure all required flags are provided.")
+	os.Exit(1)
+}