Call send_expiry_notification with single arguments instead of tuples

src/ddns_service/email.py

@@ -70,7 +70,9 @@ class EmailService:
         email,
         hostname,
         last_ipv4,
+        last_ipv4_update,
         last_ipv6,
+        last_ipv6_update,
         expiry_ttl
     ):
         """
@@ -86,20 +88,19 @@ class EmailService:
         Returns:
             True if sent successfully.
         """
+
+        expired = ""
+        if last_ipv4 and last_ipv4_update:
+            expired += f"IPv4 address: {last_ipv4} (last update: {last_ipv4_update})\n"
+        if last_ipv6 and last_ipv6_update:
+            expired += f"IPv6 address: {last_ipv6} (last update: {last_ipv6_update})\n"
+
         subject = f"DDNS hostname expired: {hostname}"
         body = f"""Your dynamic DNS entry has expired due to inactivity.
 
 Hostname: {hostname}
-"""
-        if last_ipv4:
-            ip = last_ipv4[0]
-            last_update = datetime_str(last_ipv4[1])
-            body += f"IPv4 address: {ip} (last update: {last_update})\n"
-        if last_ipv6:
-            ip = last_ipv6[0]
-            last_update = datetime_str(last_ipv6[1])
-            body += f"IPv6 address: {ip} (last update: {last_update})\n"
-        body += f"""Expiry TTL: {expiry_ttl} seconds
+{expired}
+Expiry TTL: {expiry_ttl} seconds
 
 The DNS records have been removed. Update your client to restore them.
 """