wp_mail_smtp.php — WP Mail SMTP by WPForms – The Most Popular SMTP and Email Log Plugin 1.4.2

wp-mail-smtp / wp_mail_smtp.php

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wp_mail_smtp.php

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1	<?php
2	/**
3	* Plugin Name: WP Mail SMTP
4	* Version: 1.4.2
5	* Plugin URI: https://wpforms.com/
6	* Description: Reconfigures the <code>wp_mail()</code> function to use Gmail/Mailgun/SendGrid/SMTP instead of the default <code>mail()</code> and creates an options page to manage the settings.
7	* Author: WPForms
8	* Author URI: https://wpforms.com/
9	* Network: false
10	* Text Domain: wp-mail-smtp
11	* Domain Path: /languages
12	*/
13
14	/**
15	* @author WPForms
16	* @copyright WPForms, 2007-18, All Rights Reserved
17	* This code is released under the GPL licence version 3 or later, available here
18	* https://www.gnu.org/licenses/gpl.txt
19	*/
20
21	define( 'WPMS_PLUGIN_VER', '1.4.2' );
22	define( 'WPMS_PHP_VER', '5.3.6' );
23
24	/**
25	* Setting options in wp-config.php
26	*
27	* Specifically aimed at WP Multisite users, you can set the options for this plugin as
28	* constants in wp-config.php. Copy the code below into wp-config.php and tweak settings.
29	* Values from constants are NOT stripslash()'ed.
30	*/
31
32	/*
33	define( 'WPMS_ON', true ); // True turns on the whole constants support and usage, false turns it off.
34
35	define( 'WPMS_MAIL_FROM', 'mail@example.com' );
36	define( 'WPMS_MAIL_FROM_FORCE', true ); // True turns it on, false turns it off.
37	define( 'WPMS_MAIL_FROM_NAME', 'From Name' );
38	define( 'WPMS_MAIL_FROM_NAME_FORCE', true ); // True turns it on, false turns it off.
39	define( 'WPMS_MAILER', 'smtp' ); // Possible values: 'mail', 'gmail', 'mailgun', 'sendgrid', 'smtp'.
40	define( 'WPMS_SET_RETURN_PATH', true ); // Sets $phpmailer->Sender if true.
41
42	define( 'WPMS_SMTP_HOST', 'localhost' ); // The SMTP mail host.
43	define( 'WPMS_SMTP_PORT', 25 ); // The SMTP server port number.
44	define( 'WPMS_SSL', '' ); // Possible values '', 'ssl', 'tls' - note TLS is not STARTTLS.
45	define( 'WPMS_SMTP_AUTH', true ); // True turns it on, false turns it off.
46	define( 'WPMS_SMTP_USER', 'username' ); // SMTP authentication username, only used if WPMS_SMTP_AUTH is true.
47	define( 'WPMS_SMTP_PASS', 'password' ); // SMTP authentication password, only used if WPMS_SMTP_AUTH is true.
48	define( 'WPMS_SMTP_AUTOTLS', true ); // True turns it on, false turns it off.
49
50	define( 'WPMS_GMAIL_CLIENT_ID', '' );
51	define( 'WPMS_GMAIL_CLIENT_SECRET', '' );
52
53	define( 'WPMS_MAILGUN_API_KEY', '' );
54	define( 'WPMS_MAILGUN_DOMAIN', '' );
55	define( 'WPMS_MAILGUN_REGION', 'US' ); // or 'EU' for Europe.
56
57	define( 'WPMS_SENDGRID_API_KEY', '' );
58	*/
59
60	/**
61	* Newer PHP version 5.3+ will be handled a lot differently,
62	* with better code and newer logic.
63	*
64	* @since 1.0.0
65	*/
66	if ( version_compare( phpversion(), WPMS_PHP_VER, '>=' ) ) {
67	require_once dirname( __FILE__ ) . '/wp-mail-smtp.php';
68	return;
69	}
70
71	/**
72	* Array of options and their default values.
73	* This is horrible, should be cleaned up at some point.
74	*/
75	global $wpms_options;
76	$wpms_options = array(
77	'mail_from' => '',
78	'mail_from_name' => '',
79	'mailer' => 'smtp',
80	'mail_set_return_path' => 'false',
81	'smtp_host' => 'localhost',
82	'smtp_port' => '25',
83	'smtp_ssl' => 'none',
84	'smtp_auth' => false,
85	'smtp_user' => '',
86	'smtp_pass' => '',
87	'pepipost_user' => '',
88	'pepipost_pass' => '',
89	'pepipost_port' => '2525',
90	'pepipost_ssl' => 'none',
91	'wp_mail_smtp_am_notifications_hidden' => '',
92	);
93
94	/**
95	* Activation function. This function creates the required options and defaults.
96	*/
97	if ( ! function_exists( 'wp_mail_smtp_activate' ) ) :
98	/**
99	* What to do on plugin activation.
100	*/
101	function wp_mail_smtp_activate() {
102
103	global $wpms_options;
104
105	// Create the required options...
106	foreach ( $wpms_options as $name => $val ) {
107	add_option( $name, $val );
108	}
109	}
110	endif;
111
112	if ( ! function_exists( 'wp_mail_smtp_whitelist_options' ) ) :
113	/**
114	* Whitelist plugin options.
115	*
116	* @param array $whitelist_options
117	*
118	* @return mixed
119	*/
120	function wp_mail_smtp_whitelist_options( $whitelist_options ) {
121
122	global $wpms_options;
123
124	// Add our options to the array.
125	$whitelist_options['email'] = array_keys( $wpms_options );
126
127	return $whitelist_options;
128	}
129	endif;
130
131	/**
132	* To avoid any (very unlikely) clashes, check if the function already exists.
133	*/
134	if ( ! function_exists( 'phpmailer_init_smtp' ) ) :
135	/**
136	* This code is copied, from wp-includes/pluggable.php as at version 2.2.2.
137	*
138	* @param PHPMailer $phpmailer It's passed by reference, so no need to return anything.
139	*/
140	function phpmailer_init_smtp( $phpmailer ) {
141	/*
142	* If constants are defined, apply them.
143	* We should have defined all required constants before using them.
144	*/
145	if (
146	defined( 'WPMS_ON' ) && WPMS_ON &&
147	defined( 'WPMS_MAILER' )
148	) {
149	$phpmailer->Mailer = WPMS_MAILER;
150
151	if ( defined( 'WPMS_SET_RETURN_PATH' ) && WPMS_SET_RETURN_PATH ) {
152	$phpmailer->Sender = $phpmailer->From;
153	}
154
155	if (
156	WPMS_MAILER === 'smtp' &&
157	defined( 'WPMS_SSL' ) &&
158	defined( 'WPMS_SMTP_HOST' ) &&
159	defined( 'WPMS_SMTP_PORT' )
160	) {
161	$phpmailer->SMTPSecure = WPMS_SSL;
162	$phpmailer->Host = WPMS_SMTP_HOST;
163	$phpmailer->Port = WPMS_SMTP_PORT;
164
165	if (
166	defined( 'WPMS_SMTP_AUTH' ) && WPMS_SMTP_AUTH &&
167	defined( 'WPMS_SMTP_USER' ) &&
168	defined( 'WPMS_SMTP_PASS' )
169	) {
170	$phpmailer->SMTPAuth = true;
171	$phpmailer->Username = WPMS_SMTP_USER;
172	$phpmailer->Password = WPMS_SMTP_PASS;
173	}
174	}
175	} else {
176	$option_mailer = get_option( 'mailer' );
177	$option_smtp_host = get_option( 'smtp_host' );
178	$option_smtp_ssl = get_option( 'smtp_ssl' );
179
180	// Check that mailer is not blank, and if mailer=smtp, host is not blank.
181	if (
182	! $option_mailer \|\|
183	( 'smtp' === $option_mailer && ! $option_smtp_host )
184	) {
185	return;
186	}
187
188	// If the mailer is pepipost, make sure we have a username and password.
189	if ( 'pepipost' === $option_mailer && ( ! get_option( 'pepipost_user' ) && ! get_option( 'pepipost_pass' ) ) ) {
190	return;
191	}
192
193	// Set the mailer type as per config above, this overrides the already called isMail method.
194	$phpmailer->Mailer = $option_mailer;
195
196	// Set the Sender (return-path) if required.
197	if ( get_option( 'mail_set_return_path' ) ) {
198	$phpmailer->Sender = $phpmailer->From;
199	}
200
201	// Set the SMTPSecure value, if set to none, leave this blank.
202	$phpmailer->SMTPSecure = $option_smtp_ssl;
203	if ( 'none' === $option_smtp_ssl ) {
204	$phpmailer->SMTPSecure = '';
205	$phpmailer->SMTPAutoTLS = false;
206	}
207
208	// If we're sending via SMTP, set the host.
209	if ( 'smtp' === $option_mailer ) {
210	// Set the other options.
211	$phpmailer->Host = $option_smtp_host;
212	$phpmailer->Port = get_option( 'smtp_port' );
213
214	// If we're using smtp auth, set the username & password.
215	if ( get_option( 'smtp_auth' ) === 'true' ) {
216	$phpmailer->SMTPAuth = true;
217	$phpmailer->Username = get_option( 'smtp_user' );
218	$phpmailer->Password = get_option( 'smtp_pass' );
219	}
220	} elseif ( 'pepipost' === $option_mailer ) {
221	// Set the Pepipost settings.
222	$phpmailer->Mailer = 'smtp';
223	$phpmailer->Host = 'smtp.pepipost.com';
224	$phpmailer->Port = get_option( 'pepipost_port' );
225	$phpmailer->SMTPSecure = get_option( 'pepipost_ssl' ) === 'none' ? '' : get_option( 'pepipost_ssl' );
226	$phpmailer->SMTPAuth = true;
227	$phpmailer->Username = get_option( 'pepipost_user' );
228	$phpmailer->Password = get_option( 'pepipost_pass' );
229	}
230	}
231
232	// You can add your own options here, see the phpmailer documentation for more info: http://phpmailer.sourceforge.net/docs/.
233	/** @noinspection PhpUnusedLocalVariableInspection It's passed by reference. */
234	$phpmailer = apply_filters( 'wp_mail_smtp_custom_options', $phpmailer );
235	}
236	endif;
237
238	if ( ! function_exists( 'wp_mail_smtp_options_page' ) ) :
239	/**
240	* This function outputs the plugin options page.
241	*/
242	function wp_mail_smtp_options_page() {
243
244	global $phpmailer;
245
246	// Make sure the PHPMailer class has been instantiated
247	// (copied verbatim from wp-includes/pluggable.php)
248	// (Re)create it, if it's gone missing.
249	if ( ! is_object( $phpmailer ) \|\| ! is_a( $phpmailer, 'PHPMailer' ) ) {
250	require_once ABSPATH . WPINC . '/class-phpmailer.php';
251	$phpmailer = new PHPMailer( true );
252	}
253
254	// Send a test mail if necessary.
255	if (
256	isset( $_POST['wpms_action'] ) &&
257	esc_html__( 'Send Test', 'wp-mail-smtp' ) === sanitize_text_field( $_POST['wpms_action'] ) &&
258	is_email( $_POST['to'] )
259	) {
260
261	check_admin_referer( 'test-email' );
262
263	// Set up the mail variables.
264	$to = sanitize_text_field( $_POST['to'] );
265	/* translators: %s - email address where test mail will be sent to. */
266	$subject = 'WP Mail SMTP: ' . sprintf( esc_html__( 'Test mail to %s', 'wp-mail-smtp' ), $to );
267	$message = esc_html__( 'This is a test email generated by the WP Mail SMTP WordPress plugin.', 'wp-mail-smtp' );
268
269	// Set SMTPDebug level, default is 2 (commands + data + connection status).
270	$phpmailer->SMTPDebug = apply_filters( 'wp_mail_smtp_admin_test_email_smtp_debug', 2 );
271
272	// Start output buffering to grab smtp debugging output.
273	ob_start();
274
275	// Send the test mail.
276	$result = wp_mail( $to, $subject, $message );
277
278	// Grab the smtp debugging output.
279	$smtp_debug = ob_get_clean();
280
281	// Output the response.
282	?>
283	<div id="message" class="updated notice is-dismissible"><p><strong><?php esc_html_e( 'Test Message Sent', 'wp-mail-smtp' ); ?></strong></p>
284	<p><?php esc_html_e( 'The result was:', 'wp-mail-smtp' ); ?></p>
285	<pre><?php var_dump( $result ); ?></pre>
286
287	<p><?php esc_html_e( 'The full debugging output is shown below:', 'wp-mail-smtp' ); ?></p>
288	<pre><?php print_r( $phpmailer ); ?></pre>
289
290	<p><?php esc_html_e( 'The SMTP debugging output is shown below:', 'wp-mail-smtp' ); ?></p>
291	<pre><?php echo $smtp_debug; ?></pre>
292	</div>
293	<?php
294
295	// Destroy $phpmailer so it doesn't cause issues later.
296	unset( $phpmailer );
297	}
298
299	?>
300	<div class="wrap">
301	<h2>
302	<?php esc_html_e( 'WP Mail SMTP Settings', 'wp-mail-smtp' ); ?>
303	</h2>
304
305	<form method="post" action="<?php echo esc_url( admin_url( 'options.php' ) ); ?>">
306	<?php wp_nonce_field( 'email-options' ); ?>
307
308	<table class="form-table">
309	<tr valign="top">
310	<th scope="row">
311	<label for="mail_from"><?php esc_html_e( 'From Email', 'wp-mail-smtp' ); ?></label>
312	</th>
313	<td>
314	<input name="mail_from" type="email" id="mail_from" value="<?php echo esc_attr( get_option( 'mail_from' ) ); ?>" size="40" class="regular-text"/>
315
316	<p class="description">
317	<?php
318	esc_html_e( 'You can specify the email address that emails should be sent from. If you leave this blank, the default email will be used.', 'wp-mail-smtp' );
319	if ( get_option( 'db_version' ) < 6124 ) {
320	print( '<br /><span style="color: red;">' );
321	_e( '<strong>Please Note:</strong> You appear to be using a version of WordPress prior to 2.3. Please ignore the From Name field and instead enter Name<email@domain.com> in this field.', 'wp-mail-smtp' );
322	print( '</span>' );
323	}
324	?>
325	</p>
326	</td>
327	</tr>
328	<tr valign="top">
329	<th scope="row">
330	<label for="mail_from_name"><?php esc_html_e( 'From Name', 'wp-mail-smtp' ); ?></label>
331	</th>
332	<td>
333	<input name="mail_from_name" type="text" id="mail_from_name" value="<?php echo esc_attr( get_option( 'mail_from_name' ) ); ?>" size="40" class="regular-text"/>
334
335	<p class="description">
336	<?php esc_html_e( 'You can specify the name that emails should be sent from. If you leave this blank, the emails will be sent from WordPress.', 'wp-mail-smtp' ); ?>
337	</p>
338	</td>
339	</tr>
340	</table>
341
342	<table class="form-table">
343	<tr valign="top">
344	<th scope="row">
345	<?php esc_html_e( 'Mailer', 'wp-mail-smtp' ); ?>
346	</th>
347	<td>
348	<fieldset>
349	<legend class="screen-reader-text">
350	<span><?php esc_html_e( 'Mailer', 'wp-mail-smtp' ); ?></span>
351	</legend>
352
353	<p>
354	<input id="mailer_smtp" class="wpms_mailer" type="radio" name="mailer" value="smtp" <?php checked( 'smtp', get_option( 'mailer' ) ); ?> />
355	<label for="mailer_smtp"><?php esc_html_e( 'Send all WordPress emails via SMTP.', 'wp-mail-smtp' ); ?></label>
356	</p>
357	<p>
358	<input id="mailer_mail" class="wpms_mailer" type="radio" name="mailer" value="mail" <?php checked( 'mail', get_option( 'mailer' ) ); ?> />
359	<label for="mailer_mail"><?php esc_html_e( 'Use the PHP mail() function to send emails.', 'wp-mail-smtp' ); ?></label>
360	</p>
361
362	<?php if ( wp_mail_smtp_is_pepipost_active() ) : ?>
363	<p>
364	<input id="mailer_pepipost" class="wpms_mailer" type="radio" name="mailer" value="pepipost" <?php checked( 'pepipost', get_option( 'mailer' ) ); ?> />
365	<label for="mailer_pepipost"><?php esc_html_e( 'Use Pepipost SMTP to send emails.', 'wp-mail-smtp' ); ?></label>
366	</p>
367	<p class="description">
368	<?php
369	printf(
370	/* translators: %1$s - link start; %2$s - link end. */
371	esc_html__( 'Looking for high inbox delivery? Try Pepipost with easy setup and free emails. Learn more %1$shere%2$s.', 'wp-mail-smtp' ),
372	'<a href="https://app1.pepipost.com/index.php/login/wp_mail_smtp?page=signup&utm_source=WordPress&utm_campaign=Plugins&utm_medium=wp_mail_smtp&utm_term=organic&code=WP-MAIL-SMTP" target="_blank">',
373	'</a>'
374	);
375	?>
376	</p>
377	<?php endif; ?>
378	</fieldset>
379	</td>
380	</tr>
381	</table>
382
383	<table class="form-table">
384	<tr valign="top">
385	<th scope="row">
386	<?php esc_html_e( 'Return Path', 'wp-mail-smtp' ); ?>
387	</th>
388	<td>
389	<fieldset>
390	<legend class="screen-reader-text">
391	<span><?php esc_html_e( 'Return Path', 'wp-mail-smtp' ); ?></span>
392	</legend>
393
394	<label for="mail_set_return_path">
395	<input name="mail_set_return_path" type="checkbox" id="mail_set_return_path" value="true" <?php checked( 'true', get_option( 'mail_set_return_path' ) ); ?> />
396	<?php esc_html_e( 'Set the return-path to match the From Email', 'wp-mail-smtp' ); ?>
397	</label>
398
399	<p class="description">
400	<?php esc_html_e( 'Return Path indicates where non-delivery receipts - or bounce messages - are to be sent.', 'wp-mail-smtp' ); ?>
401	</p>
402	</fieldset>
403	</td>
404	</tr>
405	</table>
406
407	<table class="form-table">
408	<tr valign="top">
409	<th scope="row">
410	<?php _e( 'Hide Announcements', 'wp-mail-smtp' ); ?>
411	</th>
412	<td>
413	<fieldset>
414	<legend class="screen-reader-text">
415	<span><?php _e( 'Hide Announcements', 'wp-mail-smtp' ); ?></span>
416	</legend>
417
418	<label for="wp_mail_smtp_am_notifications_hidden">
419	<input name="wp_mail_smtp_am_notifications_hidden" type="checkbox" id="wp_mail_smtp_am_notifications_hidden" value="true" <?php checked( 'true', get_option( 'wp_mail_smtp_am_notifications_hidden' ) ); ?> />
420	<?php _e( 'Check this if you would like to hide plugin announcements and update details.', 'wp-mail-smtp' ); ?>
421	</label>
422	</fieldset>
423	</td>
424	</tr>
425	</table>
426
427	<p class="submit">
428	<input type="submit" name="submit" id="submit" class="button-primary" value="<?php esc_attr_e( 'Save Changes', 'wp-mail-smtp' ); ?>"/>
429	</p>
430
431	<div id="wpms_section_smtp" class="wpms_section">
432	<h3>
433	<?php esc_html_e( 'SMTP Options', 'wp-mail-smtp' ); ?>
434	</h3>
435	<p><?php esc_html_e( 'These options only apply if you have chosen to send mail by SMTP above.', 'wp-mail-smtp' ); ?></p>
436
437	<table class="form-table">
438	<tr valign="top">
439	<th scope="row">
440	<label for="smtp_host"><?php esc_html_e( 'SMTP Host', 'wp-mail-smtp' ); ?></label>
441	</th>
442	<td>
443	<input name="smtp_host" type="text" id="smtp_host" value="<?php echo intval( get_option( 'smtp_host' ) ); ?>" size="40" class="regular-text"/>
444	</td>
445	</tr>
446	<tr valign="top">
447	<th scope="row">
448	<label for="smtp_port"><?php esc_html_e( 'SMTP Port', 'wp-mail-smtp' ); ?></label>
449	</th>
450	<td>
451	<input name="smtp_port" type="text" id="smtp_port" value="<?php echo esc_attr( get_option( 'smtp_port' ) ); ?>" size="6" class="regular-text"/>
452	</td>
453	</tr>
454	<tr valign="top">
455	<th scope="row"><?php esc_html_e( 'Encryption', 'wp-mail-smtp' ); ?> </th>
456	<td>
457	<fieldset>
458	<legend class="screen-reader-text">
459	<span><?php esc_html_e( 'Encryption', 'wp-mail-smtp' ); ?></span>
460	</legend>
461
462	<input id="smtp_ssl_none" type="radio" name="smtp_ssl" value="none" <?php checked( 'none', get_option( 'smtp_ssl' ) ); ?> />
463	<label for="smtp_ssl_none">
464	<span><?php esc_html_e( 'No encryption.', 'wp-mail-smtp' ); ?></span>
465	</label><br/>
466
467	<input id="smtp_ssl_ssl" type="radio" name="smtp_ssl" value="ssl" <?php checked( 'ssl', get_option( 'smtp_ssl' ) ); ?> />
468	<label for="smtp_ssl_ssl">
469	<span><?php esc_html_e( 'Use SSL encryption.', 'wp-mail-smtp' ); ?></span>
470	</label><br/>
471
472	<input id="smtp_ssl_tls" type="radio" name="smtp_ssl" value="tls" <?php checked( 'tls', get_option( 'smtp_ssl' ) ); ?> />
473	<label for="smtp_ssl_tls">
474	<span><?php esc_html_e( 'Use TLS encryption.', 'wp-mail-smtp' ); ?></span>
475	</label>
476
477	<p class="description"><?php esc_html_e( 'TLS is not the same as STARTTLS. For most servers SSL is the recommended option.', 'wp-mail-smtp' ); ?></p>
478	</fieldset>
479	</td>
480	</tr>
481	<tr valign="top">
482	<th scope="row"><?php esc_html_e( 'Authentication', 'wp-mail-smtp' ); ?> </th>
483	<td>
484	<fieldset>
485	<legend class="screen-reader-text">
486	<span><?php esc_html_e( 'Authentication', 'wp-mail-smtp' ); ?></span>
487	</legend>
488
489	<input id="smtp_auth_false" type="radio" name="smtp_auth" value="false" <?php checked( 'false', get_option( 'smtp_auth' ) ); ?> />
490	<label for="smtp_auth_false">
491	<span><?php esc_html_e( 'No: Do not use SMTP authentication.', 'wp-mail-smtp' ); ?></span>
492	</label><br/>
493
494	<input id="smtp_auth_true" type="radio" name="smtp_auth" value="true" <?php checked( 'true', get_option( 'smtp_auth' ) ); ?> />
495	<label for="smtp_auth_true">
496	<span><?php esc_html_e( 'Yes: Use SMTP authentication.', 'wp-mail-smtp' ); ?></span>
497	</label><br/>
498
499	<p class="description">
500	<?php esc_html_e( 'If this is set to no, the values below are ignored.', 'wp-mail-smtp' ); ?>
501	</p>
502	</fieldset>
503	</td>
504	</tr>
505	<tr valign="top">
506	<th scope="row">
507	<label for="smtp_user"><?php esc_html_e( 'Username', 'wp-mail-smtp' ); ?></label>
508	</th>
509	<td>
510	<input name="smtp_user" type="text" id="smtp_user" value="<?php echo esc_attr( get_option( 'smtp_user' ) ); ?>" size="40" class="code" autocomplete="off"/>
511	</td>
512	</tr>
513	<tr valign="top">
514	<th scope="row">
515	<label for="smtp_pass"><?php esc_html_e( 'Password', 'wp-mail-smtp' ); ?></label>
516	</th>
517	<td>
518	<input name="smtp_pass" type="password" id="smtp_pass" value="<?php echo esc_attr( get_option( 'smtp_pass' ) ); ?>" size="40" class="code" autocomplete="off"/>
519
520	<p class="description">
521	<?php esc_html_e( 'This is in plain text because it must not be stored encrypted.', 'wp-mail-smtp' ); ?>
522	</p>
523	</td>
524	</tr>
525	</table>
526
527	<p class="submit">
528	<input type="submit" name="submit" id="submit" class="button-primary" value="<?php esc_attr_e( 'Save Changes', 'wp-mail-smtp' ); ?>"/>
529	</p>
530	</div><!-- #wpms_section_smtp -->
531
532	<?php if ( wp_mail_smtp_is_pepipost_active() ) : ?>
533	<div id="wpms_section_pepipost" class="wpms_section">
534	<h3>
535	<?php esc_html_e( 'Pepipost SMTP Options', 'wp-mail-smtp' ); ?>
536	</h3>
537	<p>
538	<?php
539	printf(
540	/* translators: %s - Pepipost registration URL. */
541	esc_html__( 'You need to signup on %s to get the SMTP username/password.', 'wp-mail-smtp' ),
542	'<a href="https://app1.pepipost.com/index.php/login/wp_mail_smtp?page=signup&utm_source=WordPress&utm_campaign=Plugins&utm_medium=wp_mail_smtp&utm_term=organic&code=WP-MAIL-SMTP" target="_blank">Pepipost</a>',
543	''
544	);
545	?>
546	</p>
547	<table class="form-table">
548	<tr valign="top">
549	<th scope="row">
550	<label for="pepipost_user"><?php esc_html_e( 'Username', 'wp-mail-smtp' ); ?></label>
551	</th>
552	<td>
553	<input name="pepipost_user" type="text" id="pepipost_user" value="<?php echo esc_attr( get_option( 'pepipost_user' ) ); ?>" size="40" class="code"/>
554	</td>
555	</tr>
556	<tr valign="top">
557	<th scope="row">
558	<label for="pepipost_pass"><?php esc_html_e( 'Password', 'wp-mail-smtp' ); ?></label>
559	</th>
560	<td>
561	<input name="pepipost_pass" type="text" id="pepipost_pass" value="<?php echo esc_attr( get_option( 'pepipost_pass' ) ); ?>" size="40" class="code"/>
562	</td>
563	</tr>
564	<tr valign="top">
565	<th scope="row">
566	<label for="pepipost_port"><?php esc_html_e( 'SMTP Port', 'wp-mail-smtp' ); ?></label>
567	</th>
568	<td>
569	<input name="pepipost_port" type="text" id="pepipost_port" value="<?php echo intval( get_option( 'pepipost_port' ) ); ?>" size="6" class="regular-text"/>
570	</td>
571	</tr>
572	<tr valign="top">
573	<th scope="row">
574	<?php esc_html_e( 'Encryption', 'wp-mail-smtp' ); ?>
575	</th>
576	<td>
577	<fieldset>
578	<legend class="screen-reader-text">
579	<span>
580	<?php esc_html_e( 'Encryption', 'wp-mail-smtp' ); ?>
581	</span>
582	</legend>
583
584	<input id="pepipost_ssl_none" type="radio" name="pepipost_ssl" value="none" <?php checked( 'none', get_option( 'pepipost_ssl' ) ); ?> />
585	<label for="pepipost_ssl_none">
586	<span><?php esc_html_e( 'No encryption.', 'wp-mail-smtp' ); ?></span>
587	</label><br/>
588
589	<input id="pepipost_ssl_ssl" type="radio" name="pepipost_ssl" value="ssl" <?php checked( 'ssl', get_option( 'pepipost_ssl' ) ); ?> />
590	<label for="pepipost_ssl_ssl">
591	<span><?php esc_html_e( 'Use SSL encryption.', 'wp-mail-smtp' ); ?></span>
592	</label><br/>
593
594	<input id="pepipost_ssl_tls" type="radio" name="pepipost_ssl" value="tls" <?php checked( 'tls', get_option( 'pepipost_ssl' ) ); ?> />
595	<label for="pepipost_ssl_tls">
596	<span><?php esc_html_e( 'Use TLS encryption.', 'wp-mail-smtp' ); ?></span>
597	</label>
598	</fieldset>
599	</td>
600	</tr>
601	</table>
602
603	<p class="submit">
604	<input type="submit" name="submit" id="submit" class="button-primary" value="<?php esc_attr_e( 'Save Changes', 'wp-mail-smtp' ); ?>"/>
605	</p>
606	</div><!-- #wpms_section_pepipost -->
607	<?php endif; ?>
608
609	<input type="hidden" name="action" value="update"/>
610	<input type="hidden" name="option_page" value="email">
611	</form>
612
613	<h3><?php esc_html_e( 'Send a Test Email', 'wp-mail-smtp' ); ?></h3>
614
615	<form method="POST" action="">
616	<?php wp_nonce_field( 'test-email' ); ?>
617
618	<table class="form-table">
619	<tr valign="top">
620	<th scope="row">
621	<label for="to"><?php esc_html_e( 'To', 'wp-mail-smtp' ); ?></label>
622	</th>
623	<td>
624	<input name="to" type="email" id="to" value="" size="40" class="code"/>
625	<p class="description"><?php esc_html_e( 'Type an email address here and then click Send Test to generate a test email.', 'wp-mail-smtp' ); ?></p>
626	</td>
627	</tr>
628	</table>
629
630	<p class="submit">
631	<input type="submit" name="wpms_action" id="wpms_action" class="button-primary" value="<?php esc_attr_e( 'Send Test', 'wp-mail-smtp' ); ?>"/>
632	</p>
633	</form>
634
635	<script type="text/javascript">
636	/* globals jQuery */
637	var wpmsOnMailerChange = function ( mailer ) {
638	// Hide all the mailer forms.
639	jQuery( '.wpms_section' ).hide();
640	// Show the target mailer form.
641	jQuery( '#wpms_section_' + mailer ).show();
642	};
643	jQuery( document ).ready( function () {
644	// Call wpmsOnMailerChange() on startup with the current mailer.
645	wpmsOnMailerChange( jQuery( 'input.wpms_mailer:checked' ).val() );
646
647	// Watch the mailer for any changes
648	jQuery( 'input.wpms_mailer' ).on( 'change', function ( e ) {
649	// Call the wpmsOnMailerChange() handler, passing the value of the newly selected mailer.
650	wpmsOnMailerChange( jQuery( e.target ).val() );
651	} );
652	} );
653	</script>
654
655	</div>
656	<?php
657	} // End of wp_mail_smtp_options_page() function definition.
658	endif;
659
660	if ( ! function_exists( 'wp_mail_smtp_menus' ) ) :
661	/**
662	* This function adds the required page (only 1 at the moment).
663	*/
664	function wp_mail_smtp_menus() {
665
666	if ( function_exists( 'add_submenu_page' ) ) {
667	add_options_page( esc_html__( 'WP Mail SMTP Settings', 'wp-mail-smtp' ), esc_html__( 'WP Mail SMTP', 'wp-mail-smtp' ), 'manage_options', __FILE__, 'wp_mail_smtp_options_page' );
668	}
669	} // End of wp_mail_smtp_menus() function definition.
670	endif;
671
672	if ( ! function_exists( 'wp_mail_smtp_mail_from' ) ) :
673	/**
674	* This function sets the from email value.
675	*
676	* @param string $orig
677	*
678	* @return string
679	*/
680	function wp_mail_smtp_mail_from( $orig ) {
681	/*
682	* This is copied from pluggable.php lines 348-354 as at revision 10150
683	* http://trac.wordpress.org/browser/branches/2.7/wp-includes/pluggable.php#L348.
684	*/
685
686	// In case of CLI we don't have SERVER_NAME, so use host name instead, may be not a domain name.
687	$server_name = ! empty( $_SERVER['SERVER_NAME'] ) ? $_SERVER['SERVER_NAME'] : wp_parse_url( get_home_url( get_current_blog_id() ), PHP_URL_HOST );
688
689	// Get the site domain and get rid of www.
690	$sitename = strtolower( $server_name );
691	if ( substr( $sitename, 0, 4 ) === 'www.' ) {
692	$sitename = substr( $sitename, 4 );
693	}
694
695	$default_from = 'wordpress@' . $sitename;
696
697	/*
698	* End of copied code.
699	*/
700
701	// If the from email is not the default, return it unchanged.
702	if ( $orig !== $default_from ) {
703	return $orig;
704	}
705
706	if (
707	defined( 'WPMS_ON' ) && WPMS_ON &&
708	defined( 'WPMS_MAIL_FROM' )
709	) {
710	$mail_from_email = WPMS_MAIL_FROM;
711
712	if ( ! empty( $mail_from_email ) ) {
713	return $mail_from_email;
714	}
715	}
716
717	if ( is_email( get_option( 'mail_from' ), false ) ) {
718	return get_option( 'mail_from' );
719	}
720
721	// If in doubt, return the original value.
722	return $orig;
723	} // End of wp_mail_smtp_mail_from() function definition.
724	endif;
725
726	if ( ! function_exists( 'wp_mail_smtp_mail_from_name' ) ) :
727	/**
728	* This function sets the from name value.
729	*
730	* @param string $orig
731	*
732	* @return string
733	*/
734	function wp_mail_smtp_mail_from_name( $orig ) {
735
736	// Only filter if the from name is the default.
737	if ( 'WordPress' === $orig ) {
738	if (
739	defined( 'WPMS_ON' ) && WPMS_ON &&
740	defined( 'WPMS_MAIL_FROM_NAME' )
741	) {
742	$mail_from_name = WPMS_MAIL_FROM_NAME;
743
744	if ( ! empty( $mail_from_name ) ) {
745	return $mail_from_name;
746	}
747	}
748
749	$from_name = get_option( 'mail_from_name' );
750	if ( ! empty( $from_name ) && is_string( $from_name ) ) {
751	return $from_name;
752	}
753	}
754
755	return $orig;
756	}
757	endif;
758
759	/**
760	* Add a link to Settings page of a plugin on Plugins page.
761	*
762	* @param array $links
763	* @param string $file
764	*
765	* @return mixed
766	*/
767	function wp_mail_plugin_action_links( $links, $file ) {
768
769	if ( plugin_basename( __FILE__ ) !== $file ) {
770	return $links;
771	}
772
773	$settings_link = '<a href="options-general.php?page=' . plugin_basename( __FILE__ ) . '">' . esc_html__( 'Settings', 'wp-mail-smtp' ) . '</a>';
774
775	array_unshift( $links, $settings_link );
776
777	return $links;
778	}
779
780	/**
781	* Awesome Motive Notifications.
782	*
783	* @since 0.11
784	*/
785	function wp_mail_smtp_am_notifications() {
786
787	$is_hidden = get_option( 'wp_mail_smtp_am_notifications_hidden', '' );
788
789	if ( 'true' === $is_hidden ) {
790	return;
791	}
792
793	if ( ! class_exists( 'WPMS_AM_Notification' ) ) {
794	require_once dirname( __FILE__ ) . '/class-wpms-am-notification.php';
795	}
796
797	new WPMS_AM_Notification( 'smtp', WPMS_PLUGIN_VER );
798	}
799
800	add_action( 'plugins_loaded', 'wp_mail_smtp_am_notifications' );
801
802	/**
803	* Check whether the site is using Pepipost or not.
804	*
805	* @since 0.11
806	*
807	* @return bool
808	*/
809	function wp_mail_smtp_is_pepipost_active() {
810	return apply_filters( 'wp_mail_smtp_options_is_pepipost_active', 'pepipost' === get_option( 'mailer' ) );
811	}
812
813	/**
814	* Check the current PHP version and display a notice if on unsupported PHP.
815	*
816	* @since 0.11
817	*/
818	function wp_mail_smtp_check_php_version() {
819
820	// Display for PHP below 5.3.
821	if ( version_compare( PHP_VERSION, '5.3.0', '>=' ) ) {
822	return;
823	}
824
825	// Display for admins only.
826	if ( ! is_super_admin() ) {
827	return;
828	}
829
830	// Display on Dashboard page only.
831	if ( isset( $GLOBALS['pagenow'] ) && 'index.php' !== $GLOBALS['pagenow'] ) {
832	return;
833	}
834
835	echo '<div class="notice notice-error">' .
836	'<p>' .
837	sprintf(
838	/* translators: %1$s - WP Mail SMTP plugin name; %2$s - opening a link tag; %3$s - closing a link tag. */
839	esc_html__(
840	'Your site is running an outdated version of PHP that is no longer supported and may cause issues with %1$s. %2$sRead more%3$s for additional information.',
841	'wpforms'
842	),
843	'<strong>WP Mail SMTP</strong>',
844	'<a href="https://wpforms.com/docs/supported-php-version/" target="_blank">',
845	'</a>'
846	) .
847	'</p>' .
848	'</div>';
849	}
850
851	add_action( 'admin_notices', 'wp_mail_smtp_check_php_version' );
852
853	// Add an action on phpmailer_init.
854	add_action( 'phpmailer_init', 'phpmailer_init_smtp' );
855
856	if ( ! defined( 'WPMS_ON' ) \|\| ! WPMS_ON ) {
857	// Whitelist our options.
858	add_filter( 'whitelist_options', 'wp_mail_smtp_whitelist_options' );
859	// Add the create pages options.
860	add_action( 'admin_menu', 'wp_mail_smtp_menus' );
861	// Add an activation hook for this plugin.
862	register_activation_hook( __FILE__, 'wp_mail_smtp_activate' );
863	// Adds "Settings" link to the Plugins page.
864	add_filter( 'plugin_action_links', 'wp_mail_plugin_action_links', 10, 2 );
865	}
866
867	// Add filters to replace the mail from name and email address.
868	add_filter( 'wp_mail_from', 'wp_mail_smtp_mail_from' );
869	add_filter( 'wp_mail_from_name', 'wp_mail_smtp_mail_from_name' );
870
871	load_plugin_textdomain( 'wp-mail-smtp', false, dirname( plugin_basename( __FILE__ ) ) . '/languages' );
872