diff --git a/src/CSET/cset_workflow/app/send_email/bin/send_email.py b/src/CSET/cset_workflow/app/send_email/bin/send_email.py
index c59dc634a..a65d22f72 100755
--- a/src/CSET/cset_workflow/app/send_email/bin/send_email.py
+++ b/src/CSET/cset_workflow/app/send_email/bin/send_email.py
@@ -52,7 +52,7 @@ def run():
     except ValueError:
         body = "The webpage for your run of CSET is now ready, though the address could not be determined.\nCheck that WEB_ADDR and WEB_DIR are set correctly, then consider filing a bug report at https://github.com/MetOffice/CSET"
     subprocess.run(
-        f'printf "{body}" | mail -s "{subject}" -S "from=notifications" "$USER"',
+        f'printf "{body}" | mail -s "{subject}" "$USER"',
         check=True,
         shell=True,
     )
diff --git a/tests/workflow_utils/test_send_email.py b/tests/workflow_utils/test_send_email.py
index 02a408be3..3e25df0a1 100644
--- a/tests/workflow_utils/test_send_email.py
+++ b/tests/workflow_utils/test_send_email.py
@@ -69,7 +69,7 @@ def test_send_email(monkeypatch):
     def mock_subprocess_run(args, check, shell):
         assert (
             args
-            == 'printf "The webpage for your run of CSET is now ready. You can view it here:\nhttps://example.com/~user/CSET" | mail -s "CSET webpage ready" -S "from=notifications" "$USER"'
+            == 'printf "The webpage for your run of CSET is now ready. You can view it here:\nhttps://example.com/~user/CSET" | mail -s "CSET webpage ready" "$USER"'
         )
         assert check
         assert shell
@@ -84,7 +84,7 @@ def test_send_email_invalid_environment_variables(monkeypatch):
     def mock_subprocess_run(args, check, shell):
         assert (
             args
-            == 'printf "The webpage for your run of CSET is now ready, though the address could not be determined.\nCheck that WEB_ADDR and WEB_DIR are set correctly, then consider filing a bug report at https://github.com/MetOffice/CSET" | mail -s "CSET webpage ready" -S "from=notifications" "$USER"'
+            == 'printf "The webpage for your run of CSET is now ready, though the address could not be determined.\nCheck that WEB_ADDR and WEB_DIR are set correctly, then consider filing a bug report at https://github.com/MetOffice/CSET" | mail -s "CSET webpage ready" "$USER"'
         )
         assert check
         assert shell