Title: SMTP Mailer
Author: Noor Alam
Published: <strong>20 Dicembre 2015</strong>
Last modified: 16 Febbraio 2026

---

Ricerca i plugin

![](https://ps.w.org/smtp-mailer/assets/banner-772x250.jpg?rev=3064363)

![](https://ps.w.org/smtp-mailer/assets/icon-128x128.png?rev=1312656)

# SMTP Mailer

 Di [Noor Alam](https://profiles.wordpress.org/naa986/)

[Scarica](https://downloads.wordpress.org/plugin/smtp-mailer.zip)

 * [Dettagli](https://it.wordpress.org/plugins/smtp-mailer/#description)
 * [Recensioni](https://it.wordpress.org/plugins/smtp-mailer/#reviews)
 *  [Installazione](https://it.wordpress.org/plugins/smtp-mailer/#installation)
 * [Sviluppo](https://it.wordpress.org/plugins/smtp-mailer/#developers)

 [Supporto](https://wordpress.org/support/plugin/smtp-mailer/)

## Descrizione

[SMTP Mailer](https://wphowto.net/smtp-mailer-plugin-for-wordpress-1482) plugin 
allows you to configure a mail server which handles all outgoing email from your
website. It takes control of the wp_mail function and use SMTP instead.

### SMTP Mailer Add-ons

 * [Reply-To](https://wphowto.net/how-to-add-a-reply-to-address-in-the-smtp-mailer-wordpress-plugin-6997)
 * [Email Logger](https://wphowto.net/smtp-mailer-email-logger-7066)

### SMTP Mailer Settings

 * **SMTP Host**: Your outgoing mail server (e.g. smtp.gmail.com).
 * **SMTP Authentication**: Whether to use SMTP authentication when sending an email(
   True/False). If you choose to authenticate you will also need to provide your
   username and password.
 * **SMTP Username**: The username to connect to your SMTP server.
 * **SMTP Password**: The password to connect to your SMTP server.
 * **Type of Encryption**: The encryption to be used when sending an email (TLS/
   SSL/No Encryption. TLS is recommended).
 * **SMTP Port**: The port to be used when sending an email (587/465/25). If you
   choose TLS the port should be set to 587. For SSL use port 465 instead.
 * **From Email Address**: The email address to be used as the From Email when sending
   a test email.
 * **From Name**: The name to be used as the From Name when sending a test email.
 * **Force From Name**: The From name in the settings is set for all outgoing email
   messages.
 * **Force From Email**: The From email in the settings is set for all outgoing 
   email messages.
 * **Force From Address**: The From address in the settings is set for all outgoing
   email messages.
 * **Disable SSL Certificate Verification**: As of PHP 5.6 a warning/error is shown
   if the SSL certificate on the server is not properly configured. This option 
   lets you disable that behaviour.

### SMTP Mailer Test Email

Once you have configured the settings you can send a test email to check the functionality
of the plugin.

 * **To**: Email address of the recipient.
 * **Subject**: Subject of the email.
 * **Message**: Email body.

### Known Compatibility

SMTP Mailer should work with any plugin that uses the WordPress Mail function. However,
It has been tested with the following form and contact form plugins:

 * Contact Form 7
 * Jetpack Contact Form
 * Visual Form Builder
 * Fast Secure Contact Form
 * Formidable Forms
 * Contact Form by BestWebSoft

For detailed setup instructions please visit the [SMTP Mailer](https://wphowto.net/smtp-mailer-plugin-for-wordpress-1482)
plugin page.

## Screenshot

 * [[
 * SMTP Mailer Settings
 * [[
 * SMTP Mailer Test Email Tab

## Installazione

 1. Go to the Add New plugins screen in your WordPress Dashboard
 2. Click the upload tab
 3. Browse for the plugin file (smtp-mailer.zip) on your computer
 4. Click “Install Now” and then hit the activate button

## FAQ

none

## Recensioni

![](https://secure.gravatar.com/avatar/3fba1da4265dc52b24bad9557acf5ab6971570cbd96869e00b29368cafb82a46?
s=60&d=retro&r=g)

### 󠀁[SMTP transaction logging](https://wordpress.org/support/topic/smtp-transaction-logging/)󠁿

 [Andrzej Klasén](https://profiles.wordpress.org/bibeldans/) 23 Maggio 2026

This plugin has the best SMTP transaction logging out there! Seeing the exact client/
server exchange line by line is a lifesaver for troubleshooting. Amazing job!

![](https://secure.gravatar.com/avatar/497fdbd72b070cde73f6891cb486ee8724bb09600c874c7c062ffb31af8a5b5f?
s=60&d=retro&r=g)

### 󠀁[A basic and effective plugin. The best.](https://wordpress.org/support/topic/a-basic-and-effective-plugin-the-best/)󠁿

 [escuderoc](https://profiles.wordpress.org/escuderoc/) 12 Novembre 2025

For my WordPress site, I didn’t want complex plugins with lots of options or that
consumed a lot of resources. I was looking for something simple. At first, it didn’t
work well because it wasn’t 100% compatible with Jetform, but the developer fixed
it in just a few days. Now the plugin is even better. 100% recommended

![](https://secure.gravatar.com/avatar/a6f05dec300439e8386889fa734a5e156872991a7f05d8c9d5139837a53d971d?
s=60&d=retro&r=g)

### 󠀁[Simple Setup, Works Great with CF7](https://wordpress.org/support/topic/simple-setup-works-great-with-cf7/)󠁿

 [Jason Wong](https://profiles.wordpress.org/eljkmw/) 19 Ottobre 2025

I’ve tried some of the better-known ‘big name’ SMTP plugins, but none of them did
exactly what I needed with CF7 sending both Mail and Mail (2) seamlessly. This one
just works with no complications or headaches. Big thanks to Noor Alam for making
such a simple and reliable plugin!

![](https://secure.gravatar.com/avatar/ba63263c2a23a23cba18f3a9c6a816757afe47e5a7a84883a01d0f05ebf533d5?
s=60&d=retro&r=g)

### 󠀁[Simple needs, simple to use](https://wordpress.org/support/topic/simple-needs-simple-to-use/)󠁿

 [rochrunner](https://profiles.wordpress.org/rochrunner/) 5 Giugno 2025 1 risposta

I needed something quick and easy when a contact page on an old site started breaking
for some reason and I decided to redo it with new plugins for the form and mailer.
This plugin got me going and fixed within minutes to get the SMTP part working and
then worked immediately with the form I built using WPForms Lite.

![](https://secure.gravatar.com/avatar/acd9ad897f73362e782a4112979f56f661f3479873bfc570ad754295211506c3?
s=60&d=retro&r=g)

### 󠀁[Settings now has unnec. new top menu item](https://wordpress.org/support/topic/settings-now-has-unnec-new-top-menu-item/)󠁿

 [phalancs](https://profiles.wordpress.org/phalancs/) 23 Maggio 2025

The plugin is good, but the settings menu used to be properly placed in the admins
settings section. A couple of updates ago, the authors decided to create a new top
menu item for it. This is bad practice and i really dislike plugins spamming the
backend. A plugin like this should just have a settings page under “settings” not
create a new plugin menu item. Please consider keeping our backends tidy and undo
this change. Sorry for the rating, but it is how I feel right now. Will update as
soon as I change my mind or you the plugin settings placement.

![](https://secure.gravatar.com/avatar/981e4e9e5f052769b40d82a741e1a3f8842fb56200ff613f0bd6fe5f3680f9d2?
s=60&d=retro&r=g)

### 󠀁[Version 1.1.18 fails on previous versions of WordPress](https://wordpress.org/support/topic/version-1-1-18-fails-on-previous-versions-of-wordpress/)󠁿

 [iCounsellorUK](https://profiles.wordpress.org/icounselloruk/) 16 Aprile 2025 1
risposta

For sensible reasons, not all of us upgrade Wordpress the moment a new version is
released. So I was surprised to find that, today, my website was no longer able 
to send SMTP emails when nothing on the server had changed… except I found that 
SMTP Mailer had been upgraded to 1.1.18 and, when sending email, would fail with
the following error: [16-Apr-2025 18:44:29 UTC] PHP Warning: require_once(/home/
xxxx/public_html/wp-includes/class-wp-phpmailer.php): Failed to open stream: No 
such file or directory in /home/xxxx/public_html/wp-content/plugins/smtp-mailer/
main.php on line 586[16-Apr-2025 18:44:29 UTC] PHP Fatal error: Uncaught Error: 
Failed opening required ‘/home/xxxx/public_html/wp-includes/class-wp-phpmailer.php’(
include_path=’.:/opt/cpanel/ea-php82/root/usr/share/pear’) in /home/xxxxx/public_html/
wp-content/plugins/smtp-mailer/main.php:586 Version 1.1.18 assumes that wp-includes/
class-wp-phpmailer.php is available on previous versions of Wordpress… it isn’t …
and the plugin fails because this file does not exist.

 [ Leggi tutte le recensioni di 66 ](https://wordpress.org/support/plugin/smtp-mailer/reviews/)

## Contributi e sviluppo

“SMTP Mailer” è un software open source. Le persone che hanno contribuito allo sviluppo
di questo plugin sono indicate di seguito.

Collaboratori

 *   [ Noor Alam ](https://profiles.wordpress.org/naa986/)

“SMTP Mailer” è stato tradotto in 19 lingue. Grazie a [chi traduce](https://translate.wordpress.org/projects/wp-plugins/smtp-mailer/contributors)
per il contributo.

[Traduci “SMTP Mailer” nella tua lingua.](https://translate.wordpress.org/projects/wp-plugins/smtp-mailer)

### Ti interessa lo sviluppo?

[Esplora il codice](https://plugins.trac.wordpress.org/browser/smtp-mailer/) segui
il [repository SVN](https://plugins.svn.wordpress.org/smtp-mailer/), segui il [log delle modifiche](https://plugins.trac.wordpress.org/log/smtp-mailer/)
tramite [RSS](https://plugins.trac.wordpress.org/log/smtp-mailer/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

#### 1.1.25

 * Added security for debug output.

#### 1.1.24

 * WordPress 6.9 compatibility update.

#### 1.1.23

 * Added options to force from name and from email.

#### 1.1.22

 * Added minimum WordPress requirements to main file.

#### 1.1.21

 * Added an option to delete saved options.

#### 1.1.20

 * Restored older settings.

#### 1.1.19

 * Added a menu for easy configuration.

#### 1.1.18

 * WordPress 6.8 compatibility update.

#### 1.1.17

 * WordPress 6.7 compatibility update.

#### 1.1.16

 * Removed php_uname from server info.

#### 1.1.15

 * Updated the code for sanitizing password.

#### 1.1.14

 * Added support for the email logger add-on.

#### 1.1.13

 * WordPress 6.5 compatibility update.

#### 1.1.12

 * Added support for the reply-to add-on.

#### 1.1.11

 * WordPress 6.4 compatibility update.

#### 1.1.10

 * Added an option to set the configured from address for all outgoing email messages.

#### 1.1.9

 * Additional check for the settings link.

#### 1.1.8

 * Removed admin notices to avoid confusion since configurations can vary on different
   servers.

#### 1.1.7

 * WordPress 6.3 compatibility update.

#### 1.1.6

 * WordPress 6.2 compatibility update.

#### 1.1.5

 * Compatibility update for WordPress 6.1.

#### 1.1.4

 * Updated the mail function for WordPress 6.0.

#### 1.1.3

 * Updated the mail function for WordPress 5.9.

#### 1.1.2

 * Fixed an issue that could cause an Undefined variable error if $attachments was
   not set.

#### 1.1.1

 * WordPress 5.7 compatibility update.

#### 1.1.0

 * The password field can be left empty when updating the settings.

#### 1.0.9

 * Updated the code to be compatible with WordPress 5.5.

#### 1.0.8

 * SMTP Mailer is compatible with WordPress 5.3.

#### 1.0.7

 * SMTP Mailer now checks for a valid nonce when sending a test email.

#### 1.0.6

 * SMTP Mailer no longer shows the saved password in the settings.

#### 1.0.5

 * SMTP Mailer is now compatible with WordPress 4.9.

#### 1.0.4

 * Updated the mail() function by setting its minimum requirements to WordPress 
   4.8.
 * “phpmailer_init” action hook is now enabled so it can be used by other plugins.

#### 1.0.3

 * Fixed a bug where an apostrophe in the password would cause SMTP authentication
   failure.

#### 1.0.2

 * SMTP Mailer now supports the “wp_mail_failed” hook which fires after a phpmailerException
   is caught.
 * Added a new option to bypass this error on some servers where the SSL certificate
   is not properly configured – Warning: stream_socket_enable_crypto(): SSL operation
   failed with code 1. OpenSSL Error messages: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:
   certificate verify failed.

#### 1.0.1

 * First commit

## Meta

 *  Versione **1.1.25**
 *  Ultimo aggiornamento **3 mesi fa**
 *  Installazioni attive **70.000+**
 *  Versione WordPress ** 6.9 o superiore **
 *  Testato fino alla versione **6.9.4**
 *  Lingue
 * [Catalan](https://ca.wordpress.org/plugins/smtp-mailer/), [Chinese (China)](https://cn.wordpress.org/plugins/smtp-mailer/),
   [Chinese (Taiwan)](https://tw.wordpress.org/plugins/smtp-mailer/), [Danish](https://da.wordpress.org/plugins/smtp-mailer/),
   [Dutch](https://nl.wordpress.org/plugins/smtp-mailer/), [English (Australia)](https://en-au.wordpress.org/plugins/smtp-mailer/),
   [English (Canada)](https://en-ca.wordpress.org/plugins/smtp-mailer/), [English (New Zealand)](https://en-nz.wordpress.org/plugins/smtp-mailer/),
   [English (UK)](https://en-gb.wordpress.org/plugins/smtp-mailer/), [English (US)](https://wordpress.org/plugins/smtp-mailer/),
   [French (France)](https://fr.wordpress.org/plugins/smtp-mailer/), [German](https://de.wordpress.org/plugins/smtp-mailer/),
   [Japanese](https://ja.wordpress.org/plugins/smtp-mailer/), [Russian](https://ru.wordpress.org/plugins/smtp-mailer/),
   [Spanish (Colombia)](https://es-co.wordpress.org/plugins/smtp-mailer/), [Spanish (Ecuador)](https://es-ec.wordpress.org/plugins/smtp-mailer/),
   [Spanish (Mexico)](https://es-mx.wordpress.org/plugins/smtp-mailer/), [Spanish (Spain)](https://es.wordpress.org/plugins/smtp-mailer/),
   [Spanish (Venezuela)](https://ve.wordpress.org/plugins/smtp-mailer/), e [Swedish](https://sv.wordpress.org/plugins/smtp-mailer/).
 *  [Traduci nella tua lingua](https://translate.wordpress.org/projects/wp-plugins/smtp-mailer)
 * Tag
 * [email](https://it.wordpress.org/plugins/tags/email/)[mail](https://it.wordpress.org/plugins/tags/mail/)
   [phpmailer](https://it.wordpress.org/plugins/tags/phpmailer/)[smtp](https://it.wordpress.org/plugins/tags/smtp/)
 *  [Visualizzazione avanzata](https://it.wordpress.org/plugins/smtp-mailer/advanced/)

## Valutazioni

 4.5 su 5 stelle.

 *  [  58 recensioni a 5-stelle     ](https://wordpress.org/support/plugin/smtp-mailer/reviews/?filter=5)
 *  [  0 recensioni a 4-stelle     ](https://wordpress.org/support/plugin/smtp-mailer/reviews/?filter=4)
 *  [  0 recensioni a 3-stelle     ](https://wordpress.org/support/plugin/smtp-mailer/reviews/?filter=3)
 *  [  2 recensioni a 2-stelle     ](https://wordpress.org/support/plugin/smtp-mailer/reviews/?filter=2)
 *  [  6 recensioni a 1-stelle     ](https://wordpress.org/support/plugin/smtp-mailer/reviews/?filter=1)

[Your review](https://wordpress.org/support/plugin/smtp-mailer/reviews/#new-post)

[Vedi tutte le recensioni](https://wordpress.org/support/plugin/smtp-mailer/reviews/)

## Collaboratori

 *   [ Noor Alam ](https://profiles.wordpress.org/naa986/)

## Supporto

Hai qualcosa da dire? Ti serve aiuto?

 [Chiedi nel forum di supporto](https://wordpress.org/support/plugin/smtp-mailer/)

## Donazioni

Vuoi sostenere le versioni future?

 [ Fai una donazione per lo sviluppo ](https://wphowto.net/)