diff --git a/example_test.go b/example_test.go
index ea2c23e..ac49a86 100644
--- a/example_test.go
+++ b/example_test.go
@@ -28,11 +28,11 @@ func ExampleServer() {
 
 		Handler: func(peer Peer, env Envelope) error {
 			return smtp.SendMail(
-				"smtp.gmail.com:587", 
+				"smtp.gmail.com:587",
 				smtp.PlainAuth(
-					"", 
-					"username@gmail.com", 
-					"password", 
+					"",
+					"username@gmail.com",
+					"password",
 					"smtp.gmail.com",
 				),
 				string(env.Sender),
@@ -40,7 +40,6 @@ func ExampleServer() {
 				env.Data,
 			)
 		},
-
 	}
 
 	server.ListenAndServe()
diff --git a/smtpd.go b/smtpd.go
index 85fcdc2..e70078b 100644
--- a/smtpd.go
+++ b/smtpd.go
@@ -30,7 +30,7 @@ type Server struct {
 	// Enable various checks during the SMTP session.
 	// Can be left empty for no restrictions.
 	// If an error is returned, it will be reported in the SMTP session.
-	HeloChecker      func(peer Peer) error                   // Called after HELO/EHLO.
+	HeloChecker      func(peer Peer) error              // Called after HELO/EHLO.
 	SenderChecker    func(peer Peer, addr string) error // Called after MAIL FROM.
 	RecipientChecker func(peer Peer, addr string) error // Called after each RCPT TO.