diff --git a/lib/domains/stoplist.txt b/lib/domains/stoplist.txt
index 77826ac69e..531047aa93 100644
--- a/lib/domains/stoplist.txt
+++ b/lib/domains/stoplist.txt
@@ -671,4 +671,5 @@ uva.br
 alumno.cch.unam.mx
 edisonschools.edu.vn
 nuc.edu.kg
-fzs.unsa.ba
\ No newline at end of file
+fzs.unsa.ba
+outlook.rmutr.ac.th
\ No newline at end of file