You can use Google tools or Gmail to Access your Emails. To Do so just follow below Steps 1 by 1.

Step 1: Setting Up The Google App

1. First go to  Google Apps for Domains
2. Now once the page gets done loading carefully insert your WordPress domain without typing the “http://www” i.e. wpbeginner.com. 
3. Then fill the vacant text boxes with your personal information i.e. username, password. 
4. Fill in the information about your organization i.e. contact name, phone number, address and etc. but keep your alternate email address the same as your personal Gmail ID or any other email address ID. 
5. Now, after agreeing to the Google Apps terms and conditions, just press “create the account” button and proceed to the next step. 
6. After successfully completing the registration, you will be redirected to the setup page where you have to verify that you own the domain name. You have two options for the verification: express (ideal for individuals) or custom (you can test apps with few different users). I recommend express install because it will take less than 10 minutes for completion. 

Step 2: Verifying Your Domain:

This is the most vital phase of the whole process where you have to verify your WordPress Domain name, if you wish to access the Google Apps. There are quite a few methods for domain verification, which include:

1. Recommended: Upload HTML File (Here you have to use FTP software)
2. HTML Tag (Second Best Option)
3. Google Analytics (Alternate Method)
4. Domain Name provider (Alternate Method)

If you have full command over your FTP then you could just upload an HTML file for verification, but if you don’t want to get your hands too dirty then inserting an HTML tag is a good alternative. To do this:

• From the verification menu select Alternative Method >> HTML Tag.   
  Now you will see a one line HTML code, just paste it in your header or footer
• Step 3: Connecting Gmail with Your WordPress Domain:

• To enable Gmail services you first have to login to your Google App account, so go to https://www.google.com/a/your-domain-name.com (Note:Don’t forget to replace your-domain-name with your WordPress custom domain that you have connected to the Google App)
• Sign in to your account with your username and password. 
• From the navigation menu select Organization & Users » Services. Now look for Gmail App and then press the “on” button.

Step 4: Setting up Your WordPress Gmail Account

Now in order to send and receive emails from your custom WordPress domain, you have to make some changes in the DNS settings of your domain.

• Go to your Google App and login to your account.
• From the navigation menu select Setup » Set up Gmail » and then follow the instructions.
• 

Now after following the instructions correctly you will be able to see 5 MX records, which you have to submit on your webhost. 

If you have standard cPanel hosting, then with ease you can configure your MX records. First go to your cPanel and login to your account with username and password. Now within your cPanel look for MX records Tool (usually you will find it under MAIL options). 

After opening “MX Records” you have to select your domain (this option will only appear if you are hosting multiple blogs). 

Now we have to select Email routing there are 4 different methods available to route your emails, but we will select “Automatically Detect Configuration” (Recommended). 

Then add the MX records that has been provided by Google App, one by one insert all 5 MX records correctly (here you will use “Add a Record Tool”)

After adding your all 5 new records, your MX Records would somewhat look like this.

Congratulations! You have successfully created a Custom Gmail address for your Domain. Note: It may take 24 hours to complete the MX records integration as it depends on your hosting and ISP. For most modern countries, it should only take a few hours though.

Head on over to Gmail and login with your new branded email. That’s all there is to it.