Google Workspace SMTP Settings – Complete Configuration Guide

SMTP (Simple Mail Transfer Protocol) allows external applications and email clients to send emails using a Google Workspace account.

This is commonly required when integrating Gmail with:

• Microsoft Outlook

• Website contact forms

• CRM systems

• Accounting software

• Email marketing tools

Proper SMTP configuration ensures reliable email delivery.

Gmail SMTP Server Settings

Use the following SMTP server configuration.

SMTP Server

smtp.gmail.com

Ports

465 (SSL)
587 (TLS)

Authentication

Authentication must be enabled.

Use:

• Google Workspace email address

• Password or App Password

Using SMTP with Two-Factor Authentication

If the account uses 2-Step Verification, you must generate an App Password.

Steps:

1. Open Google Account Security settings

2. Click App Passwords

3. Generate password for the application

4. Use this password in SMTP configuration

Sending Limits

Google Workspace applies daily sending limits to prevent spam.

Typical limits include:

• Up to 2000 emails per day per user

• Maximum 500 recipients per message

Exceeding these limits may temporarily block sending.

Troubleshooting SMTP Issues

Common SMTP problems include:

• Incorrect port numbers

• Authentication errors

• Firewall blocking SMTP ports

• Sending limits exceeded

Always verify SMTP settings before troubleshooting further.

Best Practices

When using SMTP:

• Enable SPF, DKIM, and DMARC

• Avoid sending bulk emails from Gmail SMTP

• Monitor delivery logs regularly

Conclusion

Correct SMTP configuration allows businesses to integrate Gmail with external applications and automate email communication. Following recommended settings ensures reliable and secure email delivery.

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