only accept mail to netflix_clicker

mail_server.py

@@ -7,10 +7,18 @@ import asyncio
 
 URL_PATTERN = re.compile(b'"(https://www.netflix.com/account/update-primary-location.*?)"', re.DOTALL)
 
+
 class NetflixHandler:
 
+    async def handle_RCPT(self, session, envelope, address, rcpt_options):
+        if 'netflix_clicker' not in address:
+            logger.info(f'Rejected mail from {envelope.mail_from}')
+            return '550 not relaying to that domain'
+        envelope.rcpt_tos.append(address)
+        logger.info(f'Accepted mail from {envelope.mail_from}')
+        return '250 OK'
+
     async def handle_DATA(self, session, envelope, *args):
-        logger.info('Message from %s' % envelope.mail_from)
         data = quopri.decodestring(
             envelope.content.decode('utf8', errors='replace')
         )
@@ -22,6 +30,9 @@ class NetflixHandler:
                     browser.click(url.decode())
                 except Exception as e:
                     logger.error(e)
+        elif 'google' in envelope.mail_from:
+            logger.info(data)
+
         return '250 Message accepted for delivery'