diff --git a/python/reissue_book/Library_college.py b/python/reissue_book/Library_college.py
index a53643e..80d0ba5 100644
--- a/python/reissue_book/Library_college.py
+++ b/python/reissue_book/Library_college.py
@@ -6,13 +6,18 @@
 import json
 import os
 import sys
+from mailer import send
 
-
+#reading and saving user's information for authentication
 def user_auth():
 	username=input('Enter username(reg. no.):-')
 	password=getpass.getpass('Enter password:-')
+	email=input('Enter your email address:-')
+	emailpass=getpass.getpass('Enter email password:-')
 	data={'username':username,
-            'password':password}
+            'password':password,
+            'email':email,
+            'emailpass':emailpass}
 	with open('data.json','w') as outfile:
 		json.dump(data,outfile)
 
@@ -105,6 +110,8 @@ def user_auth():
                     else:
                         print('RETURN NEEDED !!!')
                         print('You need to return ""'+book[i].text+'"" today. ')
+                        #function to send self-reminder in user's email
+                        send() 
 
 #closing browser/webdriver
 browser.close()
diff --git a/python/reissue_book/__pycache__/mailer.cpython-36.pyc b/python/reissue_book/__pycache__/mailer.cpython-36.pyc
new file mode 100644
index 0000000..12456e8
Binary files /dev/null and b/python/reissue_book/__pycache__/mailer.cpython-36.pyc differ
diff --git a/python/reissue_book/mailer.py b/python/reissue_book/mailer.py
new file mode 100644
index 0000000..0e9d75e
--- /dev/null
+++ b/python/reissue_book/mailer.py
@@ -0,0 +1,17 @@
+def send():
+	import smtplib
+
+	smtp = smtplib.SMTP('smtp.gmail.com',587)
+
+	smtp.starttls()		#starting transport layer security
+
+	with open('data.json') as json_file:
+		data = json.load(json_file)
+
+	smtp.login(data['email'],data['emailpass'])
+
+	message = "Self reminding for library book reissue"
+
+	smtp.sendmail(data['email'],data['email'], message)
+
+	smtp.quit()
\ No newline at end of file