diff --git a/.env b/.env
index 35cca0a..0b46463 100644
--- a/.env
+++ b/.env
@@ -6,7 +6,3 @@ MQTT_CLIENT=local
 APP_MAIL_USERNAME=final.iot.backend.mailer@gmail.com
 APP_MAIL_PASSWORD=FinalIoT1234
 FLASK_ENV=development
-MAILGUN_SMTP_SERVER=smtp.googlemail.com
-MAILGUN_SMPT_PORT=465
-MAILGUN_SMPT_LOGIN=final.iot.backend.mailer@gmail.com
-MAILGUN_SMPT_PASSWORD=FinalIoT1234
diff --git a/config.py b/config.py
index 97b0e10..348fd6d 100644
--- a/config.py
+++ b/config.py
@@ -2,7 +2,7 @@ import os
 
 # App configuration
 DEBUG = os.environ['DEBUG']
-APP_VERSION = '0.2.3'
+APP_VERSION = '0.2.4'
 
 # Define the application directory
 BASE_DIR = os.path.abspath(os.path.dirname(__file__))
@@ -42,17 +42,15 @@ CELERY_BROKER_URL = os.environ['REDIS_URL']
 CELERY_RESULT_BACKEND = os.environ['REDIS_URL']
 
 # Mailer config
-SMTP_LOGIN = os.environ['MAILGUN_SMTP_LOGIN']
-SMTP_PASSWORD = os.environ['MAILGUN_SMTP_PASSWORD']
-MAIL_SERVER = os.environ['MAILGUN_SMTP_SERVER']
-MAIL_PORT = os.environ['MAILGUN_SMTP_PORT']
-MAIL_USE_TLS = True
-MAIL_USE_SSL = False
+MAIL_SERVER = 'smtp.googlemail.com'
+MAIL_PORT = 465
+MAIL_USE_TLS = False
+MAIL_USE_SSL = True
 MAIL_DEBUG = False
 
 # gmail authentication
-MAIL_USERNAME = os.environ['MAILGUN_SMTP_LOGIN']
-MAIL_PASSWORD = os.environ['MAILGUN_SMTP_PASSWORD']
+MAIL_USERNAME = os.environ['APP_MAIL_USERNAME']
+MAIL_PASSWORD = os.environ['APP_MAIL_PASSWORD']
 
 # mail accounts
 MAIL_DEFAULT_SENDER = 'final.iot.backend.mailer@gmail.com'