From d91187bd3dfb5364c63126f6fa9e0355827517d5 Mon Sep 17 00:00:00 2001
From: AAfghahi <48933336+AAfghahi@users.noreply.github.com>
Date: Thu, 5 May 2022 13:27:52 -0400
Subject: [PATCH] filename for attached images (#19929)

---
 superset/utils/core.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/superset/utils/core.py b/superset/utils/core.py
index 70563e3cd454..9e095da83a58 100644
--- a/superset/utils/core.py
+++ b/superset/utils/core.py
@@ -928,7 +928,9 @@ def send_email_smtp(  # pylint: disable=invalid-name,too-many-arguments,too-many
     # Attach any inline images, which may be required for display in
     # HTML content (inline)
     for msgid, imgdata in (images or {}).items():
-        image = MIMEImage(imgdata)
+        formatted_time = formatdate(localtime=True)
+        file_name = f"{subject} {formatted_time}"
+        image = MIMEImage(imgdata, name=file_name)
         image.add_header("Content-ID", "<%s>" % msgid)
         image.add_header("Content-Disposition", "inline")
         msg.attach(image)