Let us see how to configure the required settings in SMTP Setting correctly.
Go to the Tools menu, click on it & select SMTP Settings from the dropdown.
SMTP Settings window opens as follows:
SMTP Server: smtp.gmail.com
Email Address: enter desired email address
Port Number: 25
Enable SSL: Mark the checkbox as checked
Required Authentication: Mark the checkbox as checked. This checkbox must be marked as checked as authentication is required necessarily. Make sure that you have enabled 2-step verification enabled on your primary Gmail account.
While providing your email id in the Required Authentication field, you should ensure that you have 2-step verification enabled on your primary Gmail account.
Note: If you don’t do this, you will get an invalid password error when trying to authenticate your email address. So, you first need to enable 2-step verification.
How to enable 2-step verification in your Gmail Account?
Login to your Gmail account & open the mailbox.
Click on the Google Apps icon and then click on the Account icon as shown below:
Google Account window opens.
Click on Sign-in & security.
Sign-in & security window opens.
Here, you can see 2-Step Verification which is in Off mode.
2-Step Verification window opens.
Click on the Get a Started link.
You are redirected to the login page. Enter the valid password & click on Next.
You come to the page from where you have to set up your phone.
Select your country, enter your mobile number, choose the radio button from a Text message or Phone call & click on Next. (Here, we have chosen Text message option.)
Enter the code you received on your phone.
Click on Next.
The entered code has been verified successfully & your Google account is ready for 2-step verification.
If you want to Turn Off 2-step verification, you can turn it off from here.
You will receive an email from Google regarding the 2-step verification turn-off.
Next, you will need to generate an App password. You then use the app password in place of your personal Gmail password further.
Navigate to the Signing into Google page & click on App Passwords (which is enabled after turning on 2-step verification)
Sign in with your valid password & click Next.
App Password window opens. Click on Select app & select the Other (Custom name) option from the dropdown. When creating the app password simply choose “Other” and give it a name (for example: my 2nd business email).
From here, you can enter the name of any app.
Now, you can enter these credentials into the SMTP Settings in Opkey.