made mail validation

backend/utils/utils.py

@@ -3,6 +3,7 @@ import hashlib
 import  random
 import os
 from PyPDF2 import PdfReader
+import re
 
 FILE_NAME = 'manjil.pdf'
 FILE_PATH = os.path.join(os.getcwd(), FILE_NAME)
@@ -24,4 +25,9 @@ def read_pdf_human_readable(file_path: str) -> list[str]:
             pdf_page_text_contents.append(text.strip())
     return pdf_page_text_contents
 
-
+def is_valid_email(email):
+    pattern = r'^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$'
+    if re.match(pattern, email):
+        return True
+    else:
+        return False