First, download this app on your phone.
https://play.google.com/store/apps/details?id=com.my.mail&hl=en&gl=US
Once you open the app. you will see this screen and then select Other email
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Now enter your email ID and password.
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Now app will try to set up your account but it may fail and present below screen.
Now correct these settings as below
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Now your mailbox is added
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Now click on ADD ANOTHER MAILBOX to add apac.my mailbox
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your account should be added.
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Now you may explore various option from the App.