diff --git a/poi-scratchpad/src/main/java/org/apache/poi/hsmf/datatypes/PropertiesChunk.java b/poi-scratchpad/src/main/java/org/apache/poi/hsmf/datatypes/PropertiesChunk.java
index 91692e3897..7b037f3e5b 100644
--- a/poi-scratchpad/src/main/java/org/apache/poi/hsmf/datatypes/PropertiesChunk.java
+++ b/poi-scratchpad/src/main/java/org/apache/poi/hsmf/datatypes/PropertiesChunk.java
@@ -209,6 +209,12 @@ public abstract class PropertiesChunk extends Chunk {
                 int id = LittleEndian.readUShort(value);
                 long flags = LittleEndian.readUInt(value);
 
+                boolean multivalued = false;
+                if ((typeID & Types.MULTIVALUED_FLAG) != 0) {
+                    typeID -= Types.MULTIVALUED_FLAG;
+                    multivalued = true;
+                }
+
                 // Turn the Type and ID into helper objects
                 MAPIType type = Types.getById(typeID);
                 MAPIProperty prop = MAPIProperty.get(id);
@@ -255,7 +261,7 @@ public abstract class PropertiesChunk extends Chunk {
                 // to another chunk which holds the data itself
                 boolean isPointer = false;
                 int length = type.getLength();
-                if (type.isPointer()) {
+                if (type.isPointer() || multivalued) {
                     isPointer = true;
                     length = 8;
                 }
diff --git a/poi-scratchpad/src/test/java/org/apache/poi/hsmf/TestBasics.java b/poi-scratchpad/src/test/java/org/apache/poi/hsmf/TestBasics.java
index 83f59bd789..49dea29aff 100644
--- a/poi-scratchpad/src/test/java/org/apache/poi/hsmf/TestBasics.java
+++ b/poi-scratchpad/src/test/java/org/apache/poi/hsmf/TestBasics.java
@@ -19,13 +19,20 @@ package org.apache.poi.hsmf;
 
 import static org.apache.poi.POITestCase.assertContains;
 import static org.apache.poi.POITestCase.assertStartsWith;
-import static org.junit.jupiter.api.Assertions.*;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.io.IOException;
 
 import org.apache.poi.POIDataSamples;
 import org.apache.poi.hsmf.datatypes.AttachmentChunks;
+import org.apache.poi.hsmf.datatypes.Chunks;
 import org.apache.poi.hsmf.datatypes.DirectoryChunk;
+import org.apache.poi.hsmf.datatypes.MAPIProperty;
 import org.apache.poi.hsmf.exceptions.ChunkNotFoundException;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Disabled;
@@ -273,4 +280,33 @@ public final class TestBasics {
          }
       }
    }
+
+    @Test
+    void testBug69315() throws Exception {
+        POIDataSamples testData = POIDataSamples.getPOIFSInstance();
+        try (MAPIMessage mapi = new MAPIMessage(testData.openResourceAsStream("MailSentPropertyMultiple.msg"))) {
+            assertNotNull(mapi.getAttachmentFiles());
+            assertNotNull(mapi.getDisplayBCC());
+            assertNotNull(mapi.getMessageDate());
+
+            Chunks chunks = mapi.getMainChunks();
+            assertNotNull(chunks);
+            assertNotNull(chunks.getRawProperties());
+            assertNotNull(chunks.getRawProperties().get(MAPIProperty.CLIENT_SUBMIT_TIME));
+
+            AttachmentChunks[] attachments = mapi.getAttachmentFiles();
+            for (AttachmentChunks attachment : attachments) {
+                DirectoryChunk chunkDirectory = attachment.getAttachmentDirectory();
+                if (chunkDirectory != null) {
+                    MAPIMessage attachmentMSG = chunkDirectory.getAsEmbeddedMessage();
+                    assertNotNull(attachmentMSG);
+                    String body = attachmentMSG.getTextBody();
+                    assertNotNull(body);
+                }
+            }
+
+            assertNull(mapi.getSummaryInformation());
+            assertNull(mapi.getDocumentSummaryInformation());
+        }
+    }
 }
diff --git a/test-data/poifs/MailSentPropertyMultiple.msg b/test-data/poifs/MailSentPropertyMultiple.msg
new file mode 100644
index 0000000000..d07feb178e
Binary files /dev/null and b/test-data/poifs/MailSentPropertyMultiple.msg differ
diff --git a/test-data/spreadsheet/stress.xls b/test-data/spreadsheet/stress.xls
index 1667a30b74..e4afaf91d6 100644
Binary files a/test-data/spreadsheet/stress.xls and b/test-data/spreadsheet/stress.xls differ