diff --git a/src/parse.rs b/src/parse.rs
index b2dc002f..eae2a1f3 100644
--- a/src/parse.rs
+++ b/src/parse.rs
@@ -331,6 +331,17 @@ fn handle_unilateral<'a>(
         Response::Expunge(n) => {
             unsolicited.send(UnsolicitedResponse::Expunge(n)).unwrap();
         }
+        Response::Data {
+            status,
+            code,
+            information,
+        } if imap_proto::Status::Ok == status && code.is_none() => {
+            unsolicited
+                .send(UnsolicitedResponse::Uncategorised(
+                    information.unwrap_or("").to_string(),
+                ))
+                .unwrap();
+        }
         res => {
             return Some(res);
         }
@@ -439,6 +450,20 @@ mod tests {
         assert_eq!(fetches[0].uid, Some(74));
     }
 
+    #[test]
+    fn parse_uncategorised_ok() {
+        let lines = b"\
+        * OK Searched 91% of the mailbox, ETA 0:01\r\n";
+        let (mut send, recv) = mpsc::channel();
+        parse_fetches(lines.to_vec(), &mut send).unwrap();
+        assert_eq!(
+            recv.try_recv(),
+            Ok(UnsolicitedResponse::Uncategorised(
+                "Searched 91% of the mailbox, ETA 0:01".to_string()
+            ))
+        );
+    }
+
     #[test]
     fn parse_names_w_unilateral() {
         let lines = b"\
diff --git a/src/types/mod.rs b/src/types/mod.rs
index fb57e4e8..4689b7cf 100644
--- a/src/types/mod.rs
+++ b/src/types/mod.rs
@@ -277,6 +277,10 @@ pub enum UnsolicitedResponse {
     /// sequence numbers 9, 8, 7, 6, and 5.
     // TODO: the spec doesn't seem to say anything about when these may be received as unsolicited?
     Expunge(Seq),
+    /// An uncategorised response - one which has no code associated with it, just a text
+    /// Dovecot is known to send a status message with an ETA for a long running fetch which
+    /// has no [] enclosed code.
+    Uncategorised(String),
 }
 
 /// This type wraps an input stream and a type that was constructed by parsing that input stream,