Commit for v2.1.3 : Timeout type time.Duration instead int

-ConnectTimeout and SendTimeout are type time.Duration instead int
-NewSMTPClient() return by default 10 seconds for ConnectTimeout and SendTimeout and default Encryption is EncryptionNone
-Updated readme and example_test

README.md

@@ -55,10 +55,10 @@ func main() {
 	server.KeepAlive = true
 
 	//Timeout for connect to SMTP Server
-	server.ConnectTimeout = 10
+	server.ConnectTimeout = 10 * time.Second
 
 	//Timeout for send the data and wait respond
-	server.SendTimeout = 10
+	server.SendTimeout = 10 * time.Second
 
 	//SMTP client
 	smtpClient,err :=server.Connect()

email.go

@@ -38,8 +38,8 @@ type SMTPServer struct {
 	Encryption     encryption
 	Username       string
 	Password       string
-	ConnectTimeout int
-	SendTimeout    int
+	ConnectTimeout time.Duration
+	SendTimeout    time.Duration
 	Host           string
 	Port           int
 	KeepAlive      bool
@@ -49,7 +49,7 @@ type SMTPServer struct {
 type SMTPClient struct {
 	Client      *Client
 	KeepAlive   bool
-	SendTimeout int
+	SendTimeout time.Duration
 }
 
 // part represents the different content parts of an email body.
@@ -114,7 +114,11 @@ func NewMSG() *Email {
 
 //NewSMTPClient returns the client for send email
 func NewSMTPClient() *SMTPServer {
-	server := &SMTPServer{}
+	server := &SMTPServer{
+		Encryption:     EncryptionNone,
+		ConnectTimeout: 10 * time.Second,
+		SendTimeout:    10 * time.Second,
+	}
 	return server
 }
 
@@ -739,11 +743,8 @@ func (server *SMTPServer) Connect() (*SMTPClient, error) {
 	var c *Client
 	var err error
 
-	// set the timeout value
-	timeout := time.Duration(server.ConnectTimeout) * time.Second
-
-	// if there is a timeout, setup the channel and do the connect under a goroutine
-	if timeout != 0 {
+	// if there is a ConnectTimeout, setup the channel and do the connect under a goroutine
+	if server.ConnectTimeout != 0 {
 		smtpConnectChannel = make(chan error, 2)
 		go func() {
 			c, err = smtpConnect(server.Host, fmt.Sprintf("%d", server.Port), auth, server.Encryption, new(tls.Config))
@@ -752,8 +753,8 @@ func (server *SMTPServer) Connect() (*SMTPClient, error) {
 		}()
 	}
 
-	if timeout == 0 {
-		// no timeout, just fire the connect
+	if server.ConnectTimeout == 0 {
+		// no ConnectTimeout, just fire the connect
 		c, err = smtpConnect(server.Host, fmt.Sprintf("%d", server.Port), auth, server.Encryption, new(tls.Config))
 	} else {
 		// get the connect result or timeout result, which ever happens first
@@ -762,7 +763,7 @@ func (server *SMTPServer) Connect() (*SMTPClient, error) {
 			if err != nil {
 				return nil, errors.New(err.Error())
 			}
-		case <-time.After(timeout):
+		case <-time.After(server.ConnectTimeout):
 			return nil, errors.New("Mail Error: SMTP Connection timed out")
 		}
 	}
@@ -784,9 +785,6 @@ func send(from string, to []string, msg string, smtpClient *SMTPClient) error {
 		if smtpClient.Client != nil {
 			var smtpSendChannel chan error
 
-			// set the timeout value
-			timeout := time.Duration(smtpClient.SendTimeout) * time.Second
-
 			smtpSendChannel = make(chan error, 1)
 
 			go func(c *Client) {
@@ -832,7 +830,7 @@ func send(from string, to []string, msg string, smtpClient *SMTPClient) error {
 			case sendError := <-smtpSendChannel:
 				checkKeepAlive(smtpClient)
 				return sendError
-			case <-time.After(timeout):
+			case <-time.After(smtpClient.SendTimeout):
 				checkKeepAlive(smtpClient)
 				return errors.New("Mail Error: SMTP Send timed out")
 			}

example_test.go

@@ -2,6 +2,7 @@ package mail
 
 import (
 	"testing"
+	"time"
 )
 
 //Some variables to connect and the body
@@ -23,8 +24,8 @@ var (
 	username       = "test@example.com"
 	password       = "examplepass"
 	encryptionType = EncryptionTLS
-	connectTimeout = 10
-	sendTimeout    = 10
+	connectTimeout = 10 * time.Second
+	sendTimeout    = 10 * time.Second
 )
 
 //TestSendMailWithAttachment send a simple html email