diff --git a/app/src/main/java/eu/faircode/email/Core.java b/app/src/main/java/eu/faircode/email/Core.java
index 06c94cce50..d6f00fb9cc 100644
--- a/app/src/main/java/eu/faircode/email/Core.java
+++ b/app/src/main/java/eu/faircode/email/Core.java
@@ -630,6 +630,7 @@ class Core {
                             // Fetch UID: NO Internal error. Try again later... (MARKER:xxx)
                             // Fetch UID: BAD Serious error while processing UID FETCH (NioRecvFail (nn/nn))
                             // Fetch UID: NO SELECT: libmapper: Internal error: No servers available or value handling error!
+                            // Fetch UID: BAD Serious error while processing UID FETCH (CassdbDatabaseError (nnn/n))
                             // Move: NO Over quota
                             // Move: NO No matching messages
                             // Move: NO [EXPUNGEISSUED] Some of the requested messages no longer exist (n.nnn + n.nnn + n.nnn secs)