Added in functionality to spoof the hostname, not the IP, of the GoPhish

server that is present in the email headers. Functionality is leveraged
 when using iptables based redirection through a redirector.

db/db_mysql/migrations/20160227180335_0.1.2_store-smtp-settings.sql

@@ -10,6 +10,7 @@ CREATE TABLE `smtp`(
 	user_id bigint,
 	interface_type varchar(255),
 	name varchar(255),
+	spoofed_hostname varchar(255),
 	host varchar(255),
 	username varchar(255),
 	password varchar(255),

db/db_sqlite3/migrations/20160227180335_0.1.2_store-smtp-settings.sql

@@ -10,6 +10,7 @@ CREATE TABLE smtp(
 	user_id bigint,
 	interface_type varchar(255),
 	name varchar(255),
+	spoofed_hostname varchar(255),
 	host varchar(255),
 	username varchar(255),
 	password varchar(255),

models/smtp.go

@@ -34,6 +34,7 @@ type SMTP struct {
 	UserId           int64     `json:"-" gorm:"column:user_id"`
 	Interface        string    `json:"interface_type" gorm:"column:interface_type"`
 	Name             string    `json:"name"`
+	SpoofedHostname  string    `json:"spoofed_hostname"`
 	Host             string    `json:"host"`
 	Username         string    `json:"username,omitempty"`
 	Password         string    `json:"password,omitempty"`
@@ -113,12 +114,16 @@ func (s *SMTP) GetDialer() (mailer.Dialer, error) {
 		ServerName:         s.Host,
 		InsecureSkipVerify: s.IgnoreCertErrors,
 	}
-	hostname, err := os.Hostname()
+	if s.SpoofedHostname == "" {
-	if err != nil {
+		hostname, err := os.Hostname()
-		log.Error(err)
+		if err != nil {
-		hostname = "localhost"
+			log.Error(err)
+			hostname = "localhost"
+		}
+		d.LocalName = hostname
+	} else {
+		d.LocalName = s.SpoofedHostname
 	}
-	d.LocalName = hostname
 	return &Dialer{d}, err
 }
 

static/js/src/app/sending_profiles.js

@@ -18,6 +18,7 @@ function sendTestEmail() {
         url: '',
         smtp: {
             from_address: $("#from").val(),
+            spoofed_hostname: $("#spoofed_hostname").val(),
             host: $("#host").val(),
             username: $("#username").val(),
             password: $("#password").val(),
@@ -55,6 +56,7 @@ function save(idx) {
     profile.name = $("#name").val()
     profile.interface_type = $("#interface_type").val()
     profile.from_address = $("#from").val()
+    profile.spoofed_hostname = $("#spoofed_hostname").val()
     profile.host = $("#host").val()
     profile.username = $("#username").val()
     profile.password = $("#password").val()
@@ -90,6 +92,7 @@ function dismiss() {
     $("#interface_type").val("SMTP")
     $("#from").val("")
     $("#host").val("")
+    $("#spoofed_hostname").val("")
     $("#username").val("")
     $("#password").val("")
     $("#ignore_cert_errors").prop("checked", true)
@@ -155,6 +158,7 @@ function edit(idx) {
         $("#name").val(profile.name)
         $("#interface_type").val(profile.interface_type)
         $("#from").val(profile.from_address)
+        $("#spoofed_hostname").val(profile.spoofed_hostname)
         $("#host").val(profile.host)
         $("#username").val(profile.username)
         $("#password").val(profile.password)
@@ -174,6 +178,7 @@ function copy(idx) {
     $("#name").val("Copy of " + profile.name)
     $("#interface_type").val(profile.interface_type)
     $("#from").val(profile.from_address)
+    $("#spoofed_hostname").val(profile.spoofed_hostname)
     $("#host").val(profile.host)
     $("#username").val(profile.username)
     $("#password").val(profile.password)

templates/sending_profiles.html

@@ -52,6 +52,8 @@
                     <label class="control-label" for="from">From:</label>
                     <input type="text" class="form-control" placeholder="First Last <test@example.com>" id="from"
                         required />
+                    <label class="control-label" for="spoofed_hostname">Spoofed Hostname</label>
+                    <input type="text" class="form-control" placeholder="Spoofed hostname found in SMTP recieved header" id="spoofed_hostname">
                     <label class="control-label" for="host">Host:</label>
                     <input type="text" class="form-control" placeholder="smtp.example.com:25" id="host" required />
                     <label class="control-label" for="username">Username:</label>