diff --git a/lib/domains/stoplist.txt b/lib/domains/stoplist.txt
index 6b25b71529..f545da12ef 100644
--- a/lib/domains/stoplist.txt
+++ b/lib/domains/stoplist.txt
@@ -423,4 +423,5 @@ umy.ac.id
 social.helwan.edu.eg
 alumni.uci.edu
 cau.ac.kr
-univ-dbkm.dz
\ No newline at end of file
+univ-dbkm.dz
+mail.rmutt.ac.th
\ No newline at end of file