Change mail server to smtp again

mail/service.go

@@ -4,10 +4,10 @@ import (
 	"fmt"
 	"net/smtp"
 	"strings"
+	"text/template"
 	"time"
-	"text/template" 
+
 	"github.com/sirupsen/logrus"
-	"crypto/tls"
 )
 
 type Mail struct {
@@ -73,64 +73,16 @@ func Service(mailQueue chan Mail) {
 	addr := fmt.Sprintf("%s:%s", host, port)
 	auth := smtp.PlainAuth("", user, pass, host)
 
-	tlsConfig := &tls.Config{
-		InsecureSkipVerify: true, // Change this to verify server certificate in production
-	}
-	conn, err := tls.Dial("tcp", addr, tlsConfig)
-	if err != nil {
-		logrus.Errorf("Error dialing SMTPS server: %v", err)
-	}
-
-	client, err := smtp.NewClient(conn, host)
-	if err != nil {
-		logrus.Errorf("Error creating SMTP client: %v", err)
-	}
-
-
-	if err := client.Auth(auth); err != nil {
-		logrus.Errorf("Error authenticating: %v", err)
-	}
-
 	for mail := range mailQueue {
 		message := mail.BuildMessage()
 		to := append(mail.To, webteam)
 		batches := batchEmails(to, batch)
 		for _, emailBatch := range batches {
-
-			// if err := client.StartTLS(tlsConfig); err != nil {
-			// 	logrus.Errorf("Error starting TLS: %v", err)
-			// 	continue
-			// }
-			if err := client.Mail(sender); err != nil {
-				logrus.Errorf("Error setting sender: %v", err)
-			}
-
-			for _, recipient := range emailBatch {
-				if err := client.Rcpt(recipient); err != nil {
-					logrus.Errorf("Error setting recipient %s: %v", recipient, err)
-					continue
-				}
-			}
-
-			// Send the email body
-			w, err := client.Data()
-			if err != nil {
-				logrus.Errorf("Error creating data writer: %v", err)
-				continue
-			}
-			_, err = w.Write(message)
-			if err != nil {
-				logrus.Errorf("Error writing email body: %v", err)
-			}
-			err = w.Close()
-			if err != nil {
-				logrus.Errorf("Error closing data writer: %v", err)
+			if err := smtp.SendMail(addr, auth, sender, emailBatch, message); err != nil {
+				logrus.Errorf("Error sending mail: %v", emailBatch)
+				logrus.Errorf("Error: %v", err)
 			}
 			time.Sleep(1 * time.Second)
 		}
 	}
-
-	if err := client.Quit(); err != nil {
-		logrus.Errorf("Error closing connection: %v", err)
-	}
 }