1 files changed, 1 insertions, 0 deletions
diff --git a/boot.php b/boot.php
index 567242d90..e46c8cd48 100644
--- a/boot.php
+++ b/boot.php
@@ -224,6 +224,7 @@ define ( 'MAIL_DELETED',       0x0001);
 define ( 'MAIL_REPLIED',       0x0002);
 define ( 'MAIL_ISREPLY',       0x0004);
 define ( 'MAIL_SEEN',          0x0008);
+define ( 'MAIL_RECALLED',      0x0010);
 
 
 define ( 'ATTACH_FLAG_DIR',    0x0001);