Gmail SMTP Not Working - [SOLVED]

To troubleshoot Gmail SMTP not working issue is very simple if you follow the quick steps given on this page.

Solution 1: Enable Less Secure Apps

  • Step 1:On your Android phone, open the default browser and go to the Google Apps administration panel.
  • Step 2:Choose your email address (Gmail) and enter your account’s password in the required field.
  • Step 3:Tap on Security and select the Basic settings option.
  • Step 4:Navigate to the Less secure apps section and tap on Go to settings for less secure apps.
  • Step 5:Select the Allow users to manage their access to less secure apps option. Doing so will allow the user to access their Gmail account from new platforms.
  • Step 6:Now, access your Gmail account and try sending a test email to check if the problem has been resolved.

Solution 2: Generate App Password For 2-step Verification

  • Step 1:This solution is typically for the email clients like Thunderbird or Outlook that prompts you to enter the app password for two-step verification. 
  • Step 2:Also, you need to allow less secure apps to allow your Gmail SMTP settings to work. To do so, you can follow the instructions given in the above solution. 
  • Step 3:To generate an app password on your Gmail, go to the App passwords page first and then click the Select app button. 
  • Step 4:Next, choose the Gmail app and click on Select device
  • Step 5:Click the Generate button and enter the app password on your device. 
  • Step 6:Once you have entered the app password, click the Done button. 
  • Step 7:Now, try to send a test email and check if the Gmail SMTP not working problem has been resolved.

Solution 3: Check Your Gmail SMTP Settings 

  • Step 1:If you have configured your Gmail account in Outlook 2016, open the Outlook app and click the File tab.
  • Step 2:Select Info from the left-side panel and click on Account Settings to select the Account Settings option from the drop-down menu.
  • Step 3:In the pop-up window, verify whether you have entered the correct incoming mail server settings and click Next.
  • Step 4:Verify your outgoing mail server settings and ensure that you have enabled the My outgoing SMTP requires authentication option.
  • Step 5:Click Next and select Done.
  • Step 6:If the Gmail SMTP not working problem remains unsolved, contact our technical support team for remote assistance.