diff --git a/spidermon/contrib/actions/email/__init__.py b/spidermon/contrib/actions/email/__init__.py
index bc5249ea..24684504 100644
--- a/spidermon/contrib/actions/email/__init__.py
+++ b/spidermon/contrib/actions/email/__init__.py
@@ -59,8 +59,11 @@ def __init__(
             raise NotConfigured(
                 "You must provide at least one recipient for the message."
             )
-        if not self.subject:
-            raise NotConfigured("You must provide a subject for the message.")
+        if not self.subject and not self.subject_template:
+            raise NotConfigured(
+                "You must provide a subject (SPIDERMON_EMAIL_SUBJECT) or subject "
+                "template (SPIDERMON_EMAIL_SUBJECT_TEMPLATE) for the message."
+            )
         if not (
             self.body_text or body_text_template or body_html or self.body_html_template
         ):