diff --git a/overrides/webklex/php-imap/src/Connection/Protocols/ImapProtocol.php b/overrides/webklex/php-imap/src/Connection/Protocols/ImapProtocol.php
index 69bba0730..fc1e41499 100644
--- a/overrides/webklex/php-imap/src/Connection/Protocols/ImapProtocol.php
+++ b/overrides/webklex/php-imap/src/Connection/Protocols/ImapProtocol.php
@@ -790,9 +790,11 @@ public function getUid($id = null) {
      */
     public function getMessageNumber(string $id): int {
         $ids = $this->getUid();
-        foreach ($ids as $k => $v) {
-            if ($v == $id) {
-                return (int)$k;
+        if ($ids) {
+            foreach ($ids as $k => $v) {
+                if ($v == $id) {
+                    return (int)$k;
+                }
             }
         }