diff --git a/server/src/nm.rs b/server/src/nm.rs
index 1ee9d7b..d5f7aeb 100644
--- a/server/src/nm.rs
+++ b/server/src/nm.rs
@@ -566,7 +566,9 @@ fn extract_body(m: &ParsedMail, part_addr: &mut Vec<String>) -> Result<Body, Ser
         MULTIPART_ALTERNATIVE => extract_alternative(m, part_addr),
         MULTIPART_RELATED => extract_related(m, part_addr),
         MULTIPART_REPORT => extract_report(m, part_addr),
-        APPLICATION_ZIP => extract_zip(m),
+        // APPLICATION_ZIP and APPLICATION_GZIP are handled in the thread function
+        APPLICATION_ZIP => extract_unhandled(m),
+        APPLICATION_GZIP => extract_unhandled(m),
         _ => extract_unhandled(m),
     };
     if let Err(err) = ret {