Using Google Workspace, Gmail or G Suite for SMTP

Prerequisites

A Gmail or Google Workspace account
Two-Factor Authentication enabled on your Google account
Access to the application where you want to configure SMTP

Step 1: Enable Two-Factor Authentication

Go to Google Account
Select Security from the left-hand menu
Under "How you sign in to Google," select 2-Step Verification
Follow the on-screen instructions to enable it

Step 2: Generate an App Password

Go to the App Passwords page
Sign in to your Google account if prompted
Enter a name for the password (e.g. WP Compress or SMTP)
Click Create
Copy the 16-character password that appears

When Google displays the password, it shows spaces between each group of 4 characters. Enter it without spaces when configuring your SMTP settings.

Step 3: Configure SMTP Settings

Use the following settings in your application:

Setting	Value
SMTP Server	`smtp.gmail.com`
Port	`587` (TLS) or `465` (SSL)
Username	Your full Gmail address (e.g. `yourname@gmail.com`)
Password	The 16-character app password from Step 2

Port 587 with TLS is recommended for most applications.

Troubleshooting

If you cannot find the App Passwords option, confirm that 2-Step Verification is fully enabled on your account. The option will not appear until 2FA is active.

Authentication errors — confirm there are no spaces in the app password
Connection refused — check that your application supports TLS or SSL and matches the port used
Sending limits — standard Gmail accounts are limited to ~500 emails per day; Google Workspace accounts allow up to ~2,000

Updated on: 03/02/2026

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