diff --git a/lib/domains/blacklist.txt b/lib/domains/blacklist.txt
index 998c84098a..9b72371fad 100644
--- a/lib/domains/blacklist.txt
+++ b/lib/domains/blacklist.txt
@@ -121,4 +121,5 @@ henu.edu.cn
 stu.zuel.edu.cn
 uotago.ac.nz
 xzyz.edu.cn
-edu.uca.ma
\ No newline at end of file
+edu.uca.ma
+pekingwebmail.tech
\ No newline at end of file