diff --git a/test_unstructured/partition/test_auto.py b/test_unstructured/partition/test_auto.py
index 4b56b2bedd..f15f1e2aa0 100644
--- a/test_unstructured/partition/test_auto.py
+++ b/test_unstructured/partition/test_auto.py
@@ -1230,7 +1230,8 @@ def test_auto_partition_applies_the_correct_filetype_for_all_filetypes(file_type
     extensions = file_type._extensions
     for file in pathlib.Path(doc_path).iterdir():
         if file.is_file() and file.suffix in extensions:
-            elements = partition_fn(str(file))
+            # -- attachments get the MIME-type of the attachment, not the email they were in --
+            elements = partition_fn(str(file), process_attachments=False)
             break
 
     assert elements
diff --git a/test_unstructured/partition/test_email.py b/test_unstructured/partition/test_email.py
index 9c1be47600..eb34d499ca 100644
--- a/test_unstructured/partition/test_email.py
+++ b/test_unstructured/partition/test_email.py
@@ -119,6 +119,7 @@ def test_partition_email_partitions_an_html_part_with_quoted_printable_encoded_I
     elements = partition_email(
         example_doc_path("eml/email-no-utf8-2014-03-17.111517.eml"),
         content_source="text/html",
+        process_attachments=False,
     )
 
     assert len(elements) == 1
@@ -135,15 +136,21 @@ def test_partition_email_accepts_a_whitespace_only_file():
 
 
 def test_partition_email_can_partition_an_empty_email():
-    assert partition_email(example_doc_path("eml/mime-no-body.eml")) == []
+    assert (
+        partition_email(example_doc_path("eml/mime-no-body.eml"), process_attachments=False) == []
+    )
 
 
 def test_partition_email_does_not_break_on_an_encrypted_message():
-    assert partition_email(example_doc_path("eml/fake-encrypted.eml")) == []
+    assert (
+        partition_email(example_doc_path("eml/fake-encrypted.eml"), process_attachments=False) == []
+    )
 
 
 def test_partition_email_finds_content_when_it_is_marked_with_content_disposition_inline():
-    elements = partition_email(example_doc_path("eml/email-inline-content-disposition.eml"))
+    elements = partition_email(
+        example_doc_path("eml/email-inline-content-disposition.eml"), process_attachments=False
+    )
 
     assert len(elements) == 1
     e = elements[0]
diff --git a/unstructured/partition/email.py b/unstructured/partition/email.py
index 9b12ee66bc..d194e22d21 100644
--- a/unstructured/partition/email.py
+++ b/unstructured/partition/email.py
@@ -32,7 +32,7 @@ def partition_email(
     content_source: str = "text/html",
     metadata_filename: str | None = None,
     metadata_last_modified: str | None = None,
-    process_attachments: bool = False,
+    process_attachments: bool = True,
     **kwargs: Any,
 ) -> list[Element]:
     """Partitions an .eml file into document elements.
diff --git a/unstructured/partition/msg.py b/unstructured/partition/msg.py
index fff7b818a2..7c43f4667e 100644
--- a/unstructured/partition/msg.py
+++ b/unstructured/partition/msg.py
@@ -24,7 +24,7 @@ def partition_msg(
     file: Optional[IO[bytes]] = None,
     metadata_filename: Optional[str] = None,
     metadata_last_modified: Optional[str] = None,
-    process_attachments: bool = False,
+    process_attachments: bool = True,
     **kwargs: Any,
 ) -> list[Element]:
     """Partitions a MSFT Outlook .msg file