Gmail SMTP for WordPress

The application is launched and it requests that you give it access to data in your Google account.

If you consent, the application receives credentials to access the Gmail API.

Gmail SMTP Features

Configure your website to send email using Gmail SMTP server

Authenticate using OAuth 2.0 protocol

Authenticate with encryption when sending an email (TLS/SSL)

Gmail SMTP Basic Setup

Create a new project in Google Developers Console.

Enable Gmail API in it.

Create credentials (OAuth client ID) to access this API.

Configure the consent screen for the web application.

Enter a Product Name and a Privacy policy URL.

Once the consent screen is configured, create a web application.

Go to the plugin settings (Settings->Gmail SMTP).

Set the Authorized Redirect URL of the application as the one shown in the settings.

Finish creating the web app.

Copy the newly created Client ID and Client secret and paste into the settings area.

Enter your OAuth Email, From Email and From name.

Select an encryption.

Enter a port number.

Save the settings.

Now you can authorize your application to access the Gmail API by clicking on the Grant Permission button.

Once the application has been authorized Gmail SMTP plugin will be able to take control of all outgoing email.

Gmail SMTP Settings

Authorized Redirect URI: Authorized redirect URL for your website. You need to copy this URL into your web application.

Client ID: The client ID of your web application.

Client secret: The client secret of your web application.

OAuth Email Address: The email address that you will use for SMTP authentication. This should be the same email used in the Google Developers Console.

From Email Address: The email address which will be used as the From Address when sending an email.

From Name: The name which will be used as the From Name when sending an email.

Type of Encryption: The encryption which will be used when sending an email (TLS/SSL. TLS is recommended).

SMTP Port: The port which will be used when sending an email. If you choose TLS it should be set to 587. For SSL use port 465 instead.

Disable SSL Certificate Verification: As of PHP 5.6 a warning/error will be displayed if the SSL certificate on the server is not properly configured. You can check this option to disable that default behaviour.

Gmail SMTP 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.

For detailed setup instructions please visit the Gmail SMTP plugin page.