--- a/scripts/services/sendmail
+++ b/scripts/services/sendmail
@@ -388,7 +388,7 @@
 }
 
 # QueueID formats: in 8.11 it was \w{7}\d{5}, in 8.12+ it is \w{8}\d{6}
-my $QueueIDFormat = "(?:\\w{7,9}\\d{5}|NOQUEUE)";
+my $QueueIDFormat = "(?:\\w{7,9}\\d{5,6}|NOQUEUE)";
 
 # ENOENT refers to "no such file or directory"
 my $ENOENT = Errno::ENOENT();