I have problem receiving emails

Hello,

I was expecting to receive a message from a company interested in hire me for a job.

However they said by phone that they sent me the message which I never got in my inbox.

I called them and gave them another email adress and I could got the message.

Could you please let me know why hotmail adress could not receive the message and the other one could?

I also double check my deleted  and spam boxes messages and there's nothing in.

Thanks for your reply.

Regards,

Lene