diff --git a/assets b/assets
index 538bd95a7ba1712bf8b079375d1aa419d803273a..0e8e26e4dee4100dcff1089f83fc34fe165de65a 160000
--- a/assets
+++ b/assets
@@ -1 +1 @@
-Subproject commit 538bd95a7ba1712bf8b079375d1aa419d803273a
+Subproject commit 0e8e26e4dee4100dcff1089f83fc34fe165de65a
diff --git a/models/migration.go b/models/migration.go
index e40f283efffdadba37f3c50b16070febdf1b88ac..b50041ef1b7bdab25a07b1f19706d6d6b09daf5d 100644
--- a/models/migration.go
+++ b/models/migration.go
@@ -90,6 +90,7 @@ func addDefaultSettings() {
 		{Name: "replyTo", Value: `abslant@126.com`, Type: "mail"},
 		{Name: "smtpUser", Value: `no-reply@acg.blue`, Type: "mail"},
 		{Name: "smtpPass", Value: ``, Type: "mail"},
+		{Name: "smtpEncryption", Value: `0`, Type: "mail"},
 		{Name: "maxEditSize", Value: `4194304`, Type: "file_edit"},
 		{Name: "archive_timeout", Value: `60`, Type: "timeout"},
 		{Name: "download_timeout", Value: `60`, Type: "timeout"},
diff --git a/pkg/conf/version.go b/pkg/conf/version.go
index 953ad086e4e0861ffe51600159bed3842439bb77..280ed7287310cf7a3168beb5598f7dc7a70da90f 100644
--- a/pkg/conf/version.go
+++ b/pkg/conf/version.go
@@ -4,7 +4,7 @@ package conf
 var BackendVersion = "3.0.0-beta1"
 
 // RequiredDBVersion 与当前版本匹配的数据库版本
-var RequiredDBVersion = "3.0.0"
+var RequiredDBVersion = "3.0.0-33-g5885661"
 
 // RequiredStaticVersion 与当前版本匹配的静态资源版本
 var RequiredStaticVersion = "3.0.0"
diff --git a/pkg/email/init.go b/pkg/email/init.go
index c90a4cf2edb4d6ef4bcd84603331d0224cdbe69b..65abd7564b85eb46d97b3bee61543f8893be6483 100644
--- a/pkg/email/init.go
+++ b/pkg/email/init.go
@@ -30,19 +30,21 @@ func Init() {
 		"replyTo",
 		"smtpUser",
 		"smtpPass",
+		"smtpEncryption",
 	)
 	port := model.GetIntSetting("smtpPort", 25)
 	keepAlive := model.GetIntSetting("mail_keepalive", 30)
 
 	client := NewSMTPClient(SMTPConfig{
-		Name:      options["fromName"],
-		Address:   options["fromAdress"],
-		ReplyTo:   options["replyTo"],
-		Host:      options["smtpHost"],
-		Port:      port,
-		User:      options["smtpUser"],
-		Password:  options["smtpPass"],
-		Keepalive: keepAlive,
+		Name:       options["fromName"],
+		Address:    options["fromAdress"],
+		ReplyTo:    options["replyTo"],
+		Host:       options["smtpHost"],
+		Port:       port,
+		User:       options["smtpUser"],
+		Password:   options["smtpPass"],
+		Keepalive:  keepAlive,
+		Encryption: model.IsTrueVal(options["smtpEncryption"]),
 	})
 
 	Client = client
diff --git a/pkg/email/smtp.go b/pkg/email/smtp.go
index 0da10332722468d6fbe3f2bc209dc44c63c6b790..26946accca4bfbc280fad5751e4663675577702f 100644
--- a/pkg/email/smtp.go
+++ b/pkg/email/smtp.go
@@ -22,7 +22,7 @@ type SMTPConfig struct {
 	Port       int    // 服务器端口
 	User       string // 用户名
 	Password   string // 密码
-	Encryption string // 是否启用加密
+	Encryption bool   // 是否启用加密
 	Keepalive  int    // SMTP 连接保留时长
 }
 
@@ -77,6 +77,11 @@ func (client *SMTP) Init() {
 		d.Timeout = time.Duration(client.Config.Keepalive+5) * time.Second
 		client.chOpen = true
 
+		// 是否启用 SSL
+		if client.Config.Encryption {
+			d.SSL = true
+		}
+
 		var s mail.SendCloser
 		var err error
 		open := false