Not receiving mail to Email account hosted on Microsoft

if i put in a gmail or outlook address, everything works perfectly fine. if i tick “send me a copy”, it will send to my gmail account.

the domain name was purchased from google apps. the email client is microsoft. the website is hosted on bluehost.
i don’t understand why its not working! i’ve also tried using smtp and it hasnt been working.

i’d appreciate if you please help me with this issue asap! its really urgent!

thanks

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