diff --git a/dockerfiles/commul-customization/local.properties b/dockerfiles/commul-customization/local.properties
index d612588187e9ac8c36815e608f10fa0114d94566..94ffd6a93fba2c593819aa1bf5c6ad95a9813471 100644
--- a/dockerfiles/commul-customization/local.properties
+++ b/dockerfiles/commul-customization/local.properties
@@ -128,7 +128,7 @@ mail.server.disabled = false
 mail.server.username = ${MAIL_USER}
 mail.server.password = ${MAIL_PASSWORD}
 mail.server.port = 587
-mail.extraproperties = mail.smtp.starttls.enable=true
+mail.extraproperties = mail.smtp.starttls.enable=true,mail.smtp.ssl.protocols=TLSv1.2
 
 
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