Add limit of connections to SMTP

mastodon_email_bridge/mastodon_email_bridge.py

@@ -51,6 +51,7 @@ class MastodonEmailBridge:
             )
         self._init_log()
         self.last_translation_response = None
+        self.last_smtp_connection = None
         self._get_sent_posts()
         if 'templates_folder' in self.config:
             templates_folder=self.config['templates_folder']
@@ -188,6 +189,8 @@ class MastodonEmailBridge:
 
     def send_mail(self, data):
         '''Send an email with the post composed'''
+        if time.time() - self.last_smtp_connection < 1:
+            time.sleep(1)
         sender = self._str_template(self.config['sender'], data)
         recipient = self._str_template(self.config['recipient'], data)
         msg = MIMEMultipart('alternative')
@@ -235,6 +238,7 @@ class MastodonEmailBridge:
         self._log.debug("Sending email for post with id '%s'...", data['id'])
         conn.sendmail(sender, recipient, msg.as_string())
         conn.quit()
+        self.last_smtp_connection = time.time()
         self._log.debug("Adding entry to database...")
         cur = self.sqlite.cursor()
         res = cur.execute("SELECT id FROM sent_items WHERE id = ?", [(data['id'])])
@@ -470,6 +474,12 @@ class MastodonEmailBridge:
     default='en',
     help='Language destination for the translations'
 )
+@click.option(
+    '--connections-per-second',
+    '-c',
+    default=1,
+    help='Maximun number of SMTP connections per second'
+)
 
 @click.option('--log-file', '-l', help="File to store all debug messages.")
 # @click.option("--dummy","-n", is_flag=True,