diff --git a/mastodon_email_bridge/mastodon_email_bridge.py b/mastodon_email_bridge/mastodon_email_bridge.py
index 6567dca..221abd0 100755
--- a/mastodon_email_bridge/mastodon_email_bridge.py
+++ b/mastodon_email_bridge/mastodon_email_bridge.py
@@ -189,8 +189,9 @@ 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)
+        if self.last_smtp_connection:
+            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')