diff --git a/model/property/base.go b/model/property/base.go
index 6ba3e5c0..56b0b033 100644
--- a/model/property/base.go
+++ b/model/property/base.go
@@ -53,6 +53,7 @@ var AllProperty = []Property{
 	EmailPassword,
 	EmailFromName,
 	EmailIsEnabled,
+	EmailStarttls,
 	CustomHead,
 	CustomContentHead,
 	StatisticsCode,
diff --git a/model/property/email.go b/model/property/email.go
index 79215e3c..86f2adcf 100644
--- a/model/property/email.go
+++ b/model/property/email.go
@@ -38,4 +38,9 @@ var (
 		DefaultValue: false,
 		Kind:         reflect.Bool,
 	}
+	EmailStarttls = Property{
+		KeyValue:     "email_starttls",
+		DefaultValue: false,
+		Kind:         reflect.Bool,
+	}
 )