diff --git a/go.mod b/go.mod
index c674c3e..560f95d 100644
--- a/go.mod
+++ b/go.mod
@@ -1,12 +1,3 @@
 module rodbiren.ddns.net/git/robviren/milkwatch-server
 
 go 1.17
-
-require (
-	github.com/gorilla/mux v1.8.0 // indirect
-	github.com/json-iterator/go v1.1.10 // indirect
-	github.com/mailgun/mailgun-go/v4 v4.5.3 // indirect
-	github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 // indirect
-	github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 // indirect
-	github.com/pkg/errors v0.8.1 // indirect
-)
diff --git a/go.sum b/go.sum
index e7c2c24..e69de29 100644
--- a/go.sum
+++ b/go.sum
@@ -1,21 +0,0 @@
-github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/facebookgo/ensure v0.0.0-20160127193407-b4ab57deab51/go.mod h1:Yg+htXGokKKdzcwhuNDwVvN+uBxDGXJ7G/VN1d8fa64=
-github.com/facebookgo/stack v0.0.0-20160209184415-751773369052/go.mod h1:UbMTZqLaRiH3MsBH8va0n7s1pQYcu3uTb8G4tygF4Zg=
-github.com/facebookgo/subset v0.0.0-20150612182917-8dac2c3c4870/go.mod h1:5tD+neXqOorC30/tWg0LCSkrqj/AR6gu8yY8/fpw1q0=
-github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
-github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
-github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
-github.com/json-iterator/go v1.1.10 h1:Kz6Cvnvv2wGdaG/V8yMvfkmNiXq9Ya2KUv4rouJJr68=
-github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
-github.com/mailgun/mailgun-go/v4 v4.5.3 h1:Cc4IRTYZVSdDRD7H/wBJRYAwM9DBuFDsbBtsSwqTjCM=
-github.com/mailgun/mailgun-go/v4 v4.5.3/go.mod h1:FJlF9rI5cQT+mrwujtJjPMbIVy3Ebor9bKTVsJ0QU40=
-github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 h1:ZqeYNhU3OHLH3mGKHDcjJRFFRrJa6eAM5H+CtDdOsPc=
-github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
-github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 h1:Esafd1046DLDQ0W1YjYsBW+p8U2u7vzgW2SQVmlNazg=
-github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
-github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
-github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
-github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
diff --git a/main.go b/main.go
index 820a048..6661786 100644
--- a/main.go
+++ b/main.go
@@ -1,18 +1,13 @@
 package main
 
 import (
-	"context"
 	"fmt"
 	"log"
 	"net/http"
+	"net/smtp"
 	"time"
-
-	"github.com/mailgun/mailgun-go/v4"
 )
 
-const yourDomain string = "sandbox403bedf0d09d4e539131fabf0ab7c11f.mailgun.org" // e.g. mg.yourcompany.com
-const privateAPIKey string = "key-2b58bc1193c549df83d8d5ed54e1c982"
-
 const host = "rodberrypi"
 
 func main() {
@@ -29,7 +24,7 @@ func main() {
 }
 
 func endPointAlive() bool {
-	res, err := http.Get("http://"+host+":2122/heartbeat")
+	res, err := http.Get("http://" + host + ":2122/heartbeat")
 	if err != nil {
 		log.Println(err)
 		return false
@@ -44,22 +39,41 @@ func endPointAlive() bool {
 }
 
 func sendMail() {
-	mg := mailgun.NewMailgun(yourDomain, privateAPIKey)
+	// Sender data.
+	from := "rodbiren@gmail.com"
+	password := "Lovers8991"
 
-	sender := "robviren@gmail.com"
-	subject := "Fridge Lost Power!"
-	body := "Make Rob go fix it!"
-	recipient := "rcviren@gmail.com"
+	// Receiver email address.
+	to := []string{"rcviren@gmail.com"}
 
-	message := mg.NewMessage(sender, subject, body, recipient)
+	// smtp server configuration.
+	smtpServer := smtpServer{host: "smtp.gmail.com", port: "587"}
 
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second*10)
-	defer cancel()
+	// Message.
+	mime := "MIME-version: 1.0;\nContent-Type: text/plain; charset=\"UTF-8\";\n\n"
+	subject := "Subject: " + "Garage Power is Out" + "!\n"
+	message := []byte(subject + mime + "\n" + "Make Rob Fix It!")
 
-	resp, id, err := mg.Send(ctx, message)
+	// Authentication.
+	auth := smtp.PlainAuth("", from, password, smtpServer.host)
 
+	// Sending email.
+	err := smtp.SendMail(smtpServer.Address(), auth, from, to, message)
 	if err != nil {
-		log.Fatal(err)
+		fmt.Println(err)
+		return
 	}
-	fmt.Printf("ID: %s Resp: %s\n", id, resp)
+
+	fmt.Println("Email Sent!")
+}
+
+// smtpServer data to smtp server.
+type smtpServer struct {
+	host string
+	port string
+}
+
+// Address URI to smtp server.
+func (s *smtpServer) Address() string {
+	return s.host + ":" + s.port
 }