diff --git a/modules/mail/module.go b/modules/mail/module.go
index ee2ed8461..17b13576e 100644
--- a/modules/mail/module.go
+++ b/modules/mail/module.go
@@ -154,7 +154,7 @@ func (this *Mail) SendMailByCid(session comm.IUserSession, cid string, res []*pb
 
 	// 获取额外配置
 	conf := this.configure.GetMailConf(cid)
-	if conf != nil {
+	if conf == nil {
 		this.Errorf("can't found mail by cid: %s", cid)
 		return false
 	}