Configure SMTP

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Step 1: Allow Access to Google Account

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Before using Gmail SMTP, you need to authorize your server to access your Google account.

Click here > log into your Gmail account > click Continue button. This will enable your account to access your new device (webserver).


  • You should use your main Google account to achieve this purpose
  • If you have merged accounts from google you will receive an authentication error


Step 2: Generate App Password if 2-Step Verification is Enabled

  1. Please make sure 2-Step Verification is enabled in your Google accountLearn more
  2. Then click here to generate App password
  3. Select Other/Custom name from Select App, give it a name such as “DO – Production Server” and then click Generate.
  4. Note down the application password as it will be required in the next step.

Now, open the link again and click Continue.


Step 3: Configure Gmail on the SMTP Add-on

Enter the Gmail details inside SMTP app (to activate SMTP app).

  1. From the app admin > click Settings
  2. Click Mail > enable Use SMTP
  3. Enter as your host
  4. Use port 465
  5. Enter your Gmail login username
  6. Enter your App password (if 2-Step Verification is enabled)
  7. Mail encryption must be SSL
  8. Click Save to finalize the settings on the server.

    That’s it. Your Gmail email service has been configured on your server for outgoing transactional emails.

Note: app password in field 6 is the app password generated in step 2 above, not your Gmail password

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