Guide to Connecting Google SMTP for Sending Automated Emails #
1. Create an SMTP Password #
Step 1: Go to your Google account management and search for App Passwords.

Step 2: Name your application and select Generate.

Once generated, Google will provide you with a password to connect SMTP.

2. Connect SMTP #
Step 1: Select the SMTP platform.

Step 2: Enter the following information into the connection window:
- Name: Name of the SMTP connection.
- Description: Description of the SMTP connection.
- From Email: The sender’s email address.
- From Name: The sender’s name.
- Reply To Email: Email address to receive replies.
- SMTP Host:
smtp.gmail.com. - SMTP Port:
465/ Encrypt:NONE. - SMTP Username: Sender’s email address.
- SMTP Password: The app password created in Step 1.
- Test Email: Enter any email address to test. Click Send, and check your inbox to confirm if the email was successfully sent.
Finally, click Save to complete the SMTP connection setup.
Use SMTP in Email Builder Module – See Instruction
Other Free SMTP Services You Can Use #
Here’s a curated list of free SMTP providers—including those supported by Smax—showing their typical free-tier limits.
| Provider | Free Tier Limit | Notes |
|---|---|---|
| SendPulse | 12,000 emails/month (transactional & API) | Highest free capacity. |
| Brevo | 300 emails/day (≈ 9,000/month) | |
| MailerSend | 3,000 emails/month | Developer-friendly, strong deliverability. |
| SMTP2Go | 1,000 emails/month | Excellent deliverability, EU-hosting. |
| Mailjet | 200 emails/day | |
| Aha Send | 1,000 emails/month | Simple setup. |
| Mailtrap | 1,000 emails/month (testing focus) | Good for sandbox/testing. |
| Postmark | 100 emails/month | Best deliverability. |
| SendGrid | 100 emails/day for 60 days | |
| Gmail SMTP | 500 emails/day (Gmail); 2,000/day (Workspace paid) | Limited sender domain flexibility. |
How to Get Free SMTP for Smax AI #
- Choose a provider (e.g., Mailgun, Brevo, SendGrid, Mailjet).
- Sign up and activate the free tier.
- Verify your sending domain (usually via SPF/DKIM DNS records).
- Copy SMTP credentials: host, port, username, password.
- Add into Smax AI: Go to Smax AI > Settings > Integration > select SMTP > enter SMTP details.
- Test your automation flow to confirm emails send correctly.