diff --git a/routers/api/v2/send_message.go b/routers/api/v2/send_message.go
index a34e9bb..7537bdb 100644
--- a/routers/api/v2/send_message.go
+++ b/routers/api/v2/send_message.go
@@ -18,6 +18,7 @@ type SendMessageByTemplateReq struct {
 	Token        string                 `json:"token" validate:"required" label:"模板token"`
 	Title        string                 `json:"title" validate:"required" label:"消息标题"`
 	Placeholders map[string]interface{} `json:"placeholders" label:"占位符"`
+	Recipients   []string               `json:"recipients" label:"接收者列表"`
 }
 
 // DoSendMessageByTemplate 使用模板发送消息
@@ -111,6 +112,7 @@ func DoSendMessageByTemplate(c *gin.Context) {
 		AtMobiles:  atMobiles,
 		AtUserIds:  atUserIds,
 		AtAll:      template.IsAtAll,
+		Recipients: req.Recipients, // 动态接收者列表
 		DefaultLogger: logrus.WithFields(logrus.Fields{
 			"prefix": "[Template Send]",
 		}),
diff --git a/service/send_ins_service/send_ins.go b/service/send_ins_service/send_ins.go
index 62dfe43..ec2832d 100644
--- a/service/send_ins_service/send_ins.go
+++ b/service/send_ins_service/send_ins.go
@@ -29,20 +29,24 @@ func (sw *SendTaskInsService) ValidateDiffIns(ins models.SendTasksIns) (string,
 		if err != nil {
 			return "邮箱auth反序列化失败！", empty
 		}
-		
+
 		// 检查是否为动态接收者模式
 		var configMap map[string]interface{}
 		json.Unmarshal([]byte(ins.Config), &configMap)
 		allowMultiRecip, exists := configMap["allowMultiRecip"].(bool)
-		
-		// allowMultiRecip=true为动态模式，to_account可以为空
-		// 历史数据（不存在allowMultiRecip字段）默认为固定模式
-		if exists && allowMultiRecip && emailConfig.ToAccount == "" {
-			// 动态模式，不验证to_account
-			return "", emailConfig
+
+		// allowMultiRecip=true为动态模式，to_account可以为空（但如果有值也要验证格式）
+		if exists && allowMultiRecip {
+			// 动态模式：如果to_account为空，直接返回；如果有值，验证邮箱格式
+			if emailConfig.ToAccount == "" {
+				return "", emailConfig
+			}
+			// 有to_account值时，验证邮箱格式
+			_, Msg := app.CommonPlaygroundValid(emailConfig)
+			return Msg, emailConfig
 		}
-		
-		// 固定模式或有to_account时，进行常规验证
+
+		// 固定模式：必须验证to_account
 		_, Msg := app.CommonPlaygroundValid(emailConfig)
 		return Msg, emailConfig
 	}
@@ -77,19 +81,19 @@ func (sw *SendTaskInsService) ValidateDiffIns(ins models.SendTasksIns) (string,
 		if err != nil {
 			return "微信公众号发送配置反序列化失败！", empty
 		}
-		
+
 		// 检查是否为动态接收者模式
 		var configMap map[string]interface{}
 		json.Unmarshal([]byte(ins.Config), &configMap)
 		allowMultiRecip, exists := configMap["allowMultiRecip"].(bool)
-		
+
 		// allowMultiRecip=true为动态模式，to_account可以为空
 		// 历史数据（不存在allowMultiRecip字段）默认为固定模式
 		if exists && allowMultiRecip && Config.ToAccount == "" {
 			// 动态模式，不验证to_account
 			return "", Config
 		}
-		
+
 		// 固定模式或有to_account时，进行常规验证
 		_, Msg := app.CommonPlaygroundValid(Config)
 		return Msg, Config
@@ -100,12 +104,12 @@ func (sw *SendTaskInsService) ValidateDiffIns(ins models.SendTasksIns) (string,
 		if err != nil {
 			return "阿里云短信配置反序列化失败！", empty
 		}
-		
+
 		// 检查是否为动态接收者模式
 		var configMap map[string]interface{}
 		json.Unmarshal([]byte(ins.Config), &configMap)
 		allowMultiRecip, exists := configMap["allowMultiRecip"].(bool)
-		
+
 		// allowMultiRecip=true为动态模式，phone_number可以为空，但template_code仍需验证
 		if exists && allowMultiRecip && Config.PhoneNumber == "" {
 			// 动态模式，只验证template_code
@@ -114,7 +118,7 @@ func (sw *SendTaskInsService) ValidateDiffIns(ins models.SendTasksIns) (string,
 			}
 			return "", Config
 		}
-		
+
 		// 固定模式或有phone_number时，进行常规验证
 		_, Msg := app.CommonPlaygroundValid(Config)
 		return Msg, Config
diff --git a/service/send_message_service/send_message.go b/service/send_message_service/send_message.go
index 8a26315..f843a33 100644
--- a/service/send_message_service/send_message.go
+++ b/service/send_message_service/send_message.go
@@ -261,6 +261,11 @@ func (sm *SendMessageService) Send(task models.TaskIns) (string, error) {
 		// 处理动态接收者（邮箱、微信公众号等支持群发的渠道）
 		isDynamicMode := sm.isDynamicRecipientMode(ins.SendTasksIns)
 
+		// 检查：如果提供了recipients但实例未启用动态模式，给出提示
+		if !isDynamicMode && sm.supportsDynamicRecipient(way.Type) && len(sm.Recipients) > 0 {
+			sm.LogsAndStatusMark(fmt.Sprintf("警告：提供了 %d 个接收者，但实例未启用动态接收模式（allowMultiRecip=true），将使用实例配置的固定接收者", len(sm.Recipients)), sm.Status)
+		}
+
 		if isDynamicMode && sm.supportsDynamicRecipient(way.Type) && len(sm.Recipients) > 0 {
 			// 动态接收模式：使用API传入的Recipients列表（群发）
 			sm.LogsAndStatusMark(fmt.Sprintf("动态接收模式[共 %d 个接收者]", len(sm.Recipients)), sm.Status)
diff --git a/service/send_message_service/unified/channels/email.go b/service/send_message_service/unified/channels/email.go
index e0ff5ea..2837e55 100644
--- a/service/send_message_service/unified/channels/email.go
+++ b/service/send_message_service/unified/channels/email.go
@@ -28,6 +28,11 @@ func (c *EmailChannel) SendUnified(msgObj interface{}, ins models.SendTasksIns,
 	if !ok {
 		return "", "邮箱config校验失败"
 	}
+
+	if config.ToAccount == "" {
+		return "", "收件邮箱地址为空，请检查实例配置或启用动态接收模式"
+	}
+
 	contentType, formattedContent, err := c.FormatContent(content)
 	if err != nil {
 		return "", err.Error()