SMTP Mailer is the easiest SMTP plugin for WordPress. It allows you to configure an SMTP server to send email from your website. SMTP Mailer enhances the default WordPress mail (“wp_mail”) function by letting you connect to a remote SMPT server to send an email instead of doing it from your web server. This reduces heavy load from your server and increases email deliverability.
SMTP Mailer Info
SMTP Mailer Installation
You can install the SMTP plugin like any other WordPress plugin.
Option 1 (Quick & Easy install)
- Go to Plugins->Add New from your WordPress admin dashboard
- Search for SMTP Mailer
- Click Install once you have found it
Option 2 (Manual install)
- Download the zip version of the plugin
- Go to Plugins->Add New
- Click Upload Plugin
- Select the zip file on your computer
- Install it
Option 3 (FTP install)
- Download the zip version of the plugin
- Extract it on your computer
- Connect to your site via FTP
- Browse to “/wp-content/uploads/plugins/” directory
- Upload the folder that contains the main plugin files
SMTP Mailer Settings
You will need to configure your SMTP server related information in order to send email from your website. In order to access the settings menu go to “Settings->SMTP Mailer” from your admin dashboard.
The settings menu comes with three separate tabs – General Settings, Test Email & Server Info.
General Settings
SMTP Host
Your outgoing mail server which will be used for sending email (e.g. smtp.gmail.com).
SMTP Authentication
Enable/Disable SMTP authentication when sending an email (Supported values: True/False).
SMTP Username
The username to connect to your SMTP server. You will need to provide a username if you enable “SMTP Authentication”.
SMTP Password
The password to connect to your SMTP server. You will need to provide a password if you enable “SMTP Authentication”.
Type of Encryption
The encryption which will be used for sending an email (Supported values: TLS/SSL/No Encryption. TLS is recommended).
SMTP Port
The port which will 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 which is be used as the From Address if it is not supplied to the mail function.
From Name
The name which will be used as the From Name if it is not supplied to the mail function.
Test Email
“Test Email” menu allows you to test the functionality of the plugin after you have configured everything.
Server Info
“Server Info” menu displays some technical information regarding your server. This is very useful for troubleshooting.
Outgoing Mail Server Configurations
Here are the settings for all the popular outgoing mail (SMTP) servers.
Brevo SMTP (formerly Sendinblue)
- SMTP Host: smtp-relay.sendinblue.com
- SMTP Authentication: True
- SMTP Username: Your login email (can found be under SMTP & API > SMTP menu)
- SMTP Password: Your smtp master password (can found be under SMTP & API > SMTP menu)
- Type of Encryption: TLS
- SMTP Port: 587
Gmail SMTP
In order to connect to the Gmail smtp server with a username and password, the “allow less secure apps” option needs to be enabled in your Gmail account. Unfortunately this option is no longer available. If you wish to use Gmail SMTP you may want to take a look at my Gmail SMTP plugin which uses a different authentication method.
SMTP Mailer Add-ons
SMTP Mailer plugin comes with add-ons that you can use to enhance its functionality on your website.
Reply-To
Reply-To add-on lets you set a reply-to address for all outgoing email messages.
Email Logger
Email Logger add-on lets you log and view all email messages sent by SMTP Mailer.
Is anyone using this successfully with PHP version: 7.4.20?
I can enter settings on the general tab, and view the ‘server info’ tab, but when I try to send a test email I the page hangs with a blank screen and then times out, no progress or debugging info is visible.
Running this on a VULTR one-click wordpress VPS
@Seth, Do you see any error log on the server?
no but I figured out the issue. The old IP address for the mail server’s hostname was still cached in my VPS providers DNS servers. So it was hanging trying to make contact to a non-existent mail server, however I was still not getting any feedback via the plugin’s ‘Test Email’ tab, just a blank screen.
Once I resolved the name resolution issue, it worked and I can see output on the ‘Test Email’ tab after sending.
Does this work with Zohomail
@Haroon, It does. I have tested it.
SMTP Error: Could not authenticate.
I’m not succeeding, I lowered the security level
can you help me?
We have WordPress deployed on Azure and having a really hard time getting it to connect to our SMTP server, which has been configured to allow connections from Azure IP linked to the WordPress site.
SMTP ERROR: Failed to connect to server: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. (10060). SMTP Error: Could not connect to SMTP host.
We are trying with o365 for mail integration, but its failing with error : SMTP ERROR: Password command failed: 535 5.7.139 Authentication unsuccessful, the user credentials were incorrect.
And we are sure that credentials are working and we are able to login with the same directly thru outlook.
I believe o365 requires that you create an “app password” for the website which is different from your normal email password. I would be interested to know if this will work with SMTP Mailer. Most other WP smtp plugins require a pro version to handle o365 connections
@Rodf, We can’t confirm unfortunately. This plugin is not for a specific SMTP provider.
Dear, I love the plugins, it works super well, I would like them to add the log section. thank you
not working with gmail SMTP? I keep trying, not succeeded
@awal, The plugin does not claim that it works with Gmail SMTP. Please check the Gmail SMTP section for more information.
Is there a way to display a log file for sent e-mails or add it as an option?
@Martin, You can install a separate plugin that will log all outgoing email messages.
How to check the password of the email? I cant find it in database and I cannot change it in my hosting… This is my last hope, please help me…
Just leaving this for the next person trying to connect to Office365 with this. You need to activate SMTP Auth in Microsoft 365 admin center and go to Users > Active users.
Hi,
can i download the previous version of smtp mailer plugin (1.1.14)?
Thanks!
BR,
L
@Tóth, Is there a reason why you wish to install the previous version?