diff --git a/cfg.example.json b/cfg.example.json
index 0e44024..f56efc7 100644
--- a/cfg.example.json
+++ b/cfg.example.json
@@ -16,6 +16,10 @@
 		"mailServerHost" : "smtp.exmail.qq.com",
 		"mailServerPort" : 25,
 		"mailServerAccount" : "anan.nie@tycloudstart.com",
-		"mailServerPasswd" : ""
+		"mailServerPasswd" : "",
+		"tos" : "",
+		"subject" : "",
+		"content" : "",
+		"user" : ""
 	}
-}
\ No newline at end of file
+}
diff --git a/g/cfg.go b/g/cfg.go
index e63afc4..31ea000 100644
--- a/g/cfg.go
+++ b/g/cfg.go
@@ -2,9 +2,10 @@ package g
 
 import (
 	"encoding/json"
-	"github.com/toolkits/file"
 	"log"
 	"sync"
+
+	"github.com/toolkits/file"
 )
 
 type HttpConfig struct {
@@ -26,6 +27,10 @@ type MailConfig struct {
 	MailServerPort    int    `json:"mailServerPort"`
 	MailServerAccount string `json:"mailServerAccount"`
 	MailServerPasswd  string `json:"mailServerPasswd"`
+	Tos               string `json:"tos"`
+	Subject           string `json:"subject"`
+	Content           string `json:"content"`
+	User              string `json:"user"`
 }
 
 type GlobalConfig struct {
diff --git a/http/sender_api_http.go b/http/sender_api_http.go
index b45898e..df404d5 100644
--- a/http/sender_api_http.go
+++ b/http/sender_api_http.go
@@ -2,10 +2,12 @@ package http
 
 import (
 	"fmt"
-	"github.com/niean/mailsender/proc"
-	"github.com/niean/mailsender/sender"
 	"net/http"
 	"strings"
+
+	"github.com/niean/mailsender/g"
+	"github.com/niean/mailsender/proc"
+	"github.com/niean/mailsender/sender"
 )
 
 func configMailSenderApiRoutes() {
@@ -19,30 +21,47 @@ func configMailSenderApiRoutes() {
 			return
 		}
 
+		cfg := g.GetConfig()
 		req.ParseForm()
 		params := req.Form
 		content, exist := params["content"]
 		if !exist || len(content[0]) < 1 {
-			RenderDataJson(w, "bad content")
-			return
+			if len(cfg.Mail.Content) > 0 {
+				content = append(content, cfg.Mail.Content)
+			} else {
+				RenderDataJson(w, "bad content")
+				return
+			}
 		}
 
 		subject, exist := params["subject"]
 		if !exist || len(subject[0]) < 1 {
-			RenderDataJson(w, "bad subject")
-			return
+			if len(cfg.Mail.Subject) > 0 {
+				subject = append(subject, cfg.Mail.Subject)
+			} else {
+				RenderDataJson(w, "bad subject")
+				return
+			}
 		}
 
 		tos, exist := params["tos"]
 		if !exist || len(tos[0]) < 1 {
-			RenderDataJson(w, "bad tos")
-			return
+			if len(cfg.Mail.Tos) > 0 {
+				tos = append(tos, cfg.Mail.Tos)
+			} else {
+				RenderDataJson(w, "bad tos")
+				return
+			}
 		}
 
 		from := []string{}
 		fromUser, exist := params["user"]
 		if exist && len(fromUser[0]) > 0 {
 			from = append(from, fromUser[0])
+		} else {
+			if len(cfg.Mail.User) > 0 {
+				from = append(from, cfg.Mail.User)
+			}
 		}
 		if ok := sender.AddMail(strings.Split(tos[0], ","), subject[0], content[0], from...); !ok {
 			RenderDataJson(w, "error, service busy")