Catch TNEF attachment errors

app/src/main/java/eu/faircode/email/MessageHelper.java

@@ -2165,7 +2165,8 @@ public class MessageHelper {
                     db.attachment().setDownloaded(attachment.id, (long) body.length());
                 }
 
-                for (org.apache.poi.hmef.Attachment at : msg.getAttachments()) {
+                for (org.apache.poi.hmef.Attachment at : msg.getAttachments())
+                    try {
                         String filename = at.getLongFilename();
                         if (filename == null)
                             filename = at.getFilename();
@@ -2190,6 +2191,9 @@ public class MessageHelper {
                         }
 
                         db.attachment().setDownloaded(attachment.id, (long) data.length);
+                    } catch (Throwable ex) {
+                        // java.lang.IllegalArgumentException: Attachment corrupt - no Data section
+                        Log.e(ex);
                     }
 
                 StringBuilder sb = new StringBuilder();