diff --git a/python/email_contact_form/src/main.py b/python/email_contact_form/src/main.py
index 5bbd4b04..a8ad0afb 100644
--- a/python/email_contact_form/src/main.py
+++ b/python/email_contact_form/src/main.py
@@ -1,17 +1,18 @@
 import os
-
+# Import necessary modules and custom functions
 from .utils import get_static_file, throw_if_missing, send_email, template_form_message
 from .cors import is_origin_permitted, get_cors_headers
 from urllib.parse import parse_qs, urljoin
 
-
+# Define error codes as an enum
 class ErrorCode:
     INVALID_REQUEST = "invalid-request"
     MISSING_FORM_FIELDS = "missing-form-fields"
     SERVER_ERROR = "server-error"
 
-
+# Main function for handling HTTP requests
 def main(context):
+     # Check for the presence of required environment variables
     throw_if_missing(
         os.environ,
         [
@@ -21,12 +22,12 @@ def main(context):
             "SMTP_PASSWORD",
         ],
     )
-
+    # Warn if all origins are allowed (security risk)
     if os.getenv("ALLOWED_ORIGINS", "*") == "*":
         context.log(
             "WARNING: Allowing requests from any origin - this is a security risk!"
         )
-
+    # Handle GET request for the homepage
     if context.req.method == "GET" and context.req.path == "/":
         return context.res.send(
             get_static_file("index.html"),
@@ -35,23 +36,24 @@ def main(context):
                 "Content-Type": "text/html; charset=utf-8",
             },
         )
-
+    # Check content type of the request
     if context.req.headers["content-type"] == "application/x-www-form-urlencoded":
         context.error("Incorrect content type")
         return context.res.redirect(
             f"{context.req.headers['referer']}?code={ErrorCode.INVALID_REQUEST}"
         )
-
+    # Check if the origin is permitted
     if not is_origin_permitted(context.req):
         context.error("Origin not permitted")
         return context.res.redirect(
             f"{context.req.headers['referer']}?code={ErrorCode.INVALID_REQUEST}"
         )
-
+    # Parse form data from the request
     form = parse_qs(context.req.body)
     form = {key: value[0] for key, value in form.items()}
 
     try:
+        # Check for the presence of the "email" field in the form
         throw_if_missing(form, ["email"])
     except ValueError as err:
         return context.res.redirect(
@@ -61,6 +63,7 @@ def main(context):
         )
 
     try:
+        # Send an email with form data
         send_email(
             {
                 "from": os.getenv("SMTP_USERNAME"),
@@ -70,20 +73,21 @@ def main(context):
             }
         )
     except Exception as err:
+        # Handle email sending error
         context.error(err)
         return context.res.redirect(
             f"{context.req.headers['referer']}?code={ErrorCode.SERVER_ERROR}",
             301,
             get_cors_headers(context.req),
         )
-
+    # If no "_next" field, show a success page
     if not form["_next"]:
         return context.res.send(
             get_static_file("success.html"),
             200,
             "content-type: text/html; charset=utf-8",
         )
-
+    # Redirect to the URL specified in the "_next" field
     return context.res.redirect(
         urljoin(context.req.headers["referer"], form["_next"][0]),
         301,