Many of us use the Google Applications for setting up mail boxes for our own custom websites. It allows you to use their applications and mail accounts even when you have the mail IDs configured for own websites like anil.gupta@am22tech.com.
Google applications uses Gmail (an email client application by Google) to show your custom domain's email box. If you don't use Google Applications, you will not be able to Gmail app..

Did you know that you can very well use your custom email account with the Gmail Android app. on your mobile too? It is pretty much same as using your gmail account with the app..

Here is how you can do it.

1. Get Gmail App. for Android: First requirement is to download and install Gmail App. for Android on your mobile. If you already have it, you can move to next step.
   
   
2. Set up an account for your custom Email: Open your mobile and tap on the top right hand corner button:
   
   
   
   Here you can see the accounts which are already associated with your Gmail App.. We currently have only emails registered with @gmail.com. We will now add the one with @am22tech.com
3. Click on 'Add Account' button. First screen in adding account details gives you some information. Read it and click 'Next'.
   Click 'Sign In' button as you already have a custom email account set up with Google Applications. If you don't, you should first set it up using the steps listed here.
   
   
   
   
4. Enter email details: Enter the complete email address. For e.g. anil.gupta@am22tech.com is the one i would enter.
   Enter password and click 'Sign in' button.
   
   
   
   Once you are signed in, it will give the option of synchronizing the mails, contacts etc. You can choose to sync now or do it later.
   
   Click 'Finish' button and then 'Finish Set up' button on next screen.
   
   
5. Open Custom email account in Gmail App: Open Gmail app. Your custom email account will now be available in your Android's Gmail app. on the top right hand side corner. Tap it to select the mail account that you would like to see and you are done.
   
   
   
   

You can choose to add mulitple Gmail accounts (Gmail or custom email) to work with Gmail app.

That's it. You are done. I hope you will find this article helpful.