Emails wont deliver to Vietnamese companies/people

PLEASE HELP! Any time I send an email to Vietnamese people or companies, the email fails to deliver. The email addresses are correct. I have tried Googling the problem, a lot of people have the same problem but still no good answers exist. I use hotmail, I am from Ireland.

For instance, I have emailed local football clubs and I have emailed Arsenal VN about coaching summer camps here.

It seems any email that ends in .vn simply won't deliver, for example, [email protected]

Any advice??? would be greatly appreciated !! :)

According to the website, the address doesn't contain the c in schools. Yes, they misspelled, but perhaps that's why your email couldn't be delivered. Try again with the new spelling: [email protected]

Thanks for your help. That solves one email problem :) but it still doesn't explain others. I have emailed 4 football clubs and all 4 didn't deliver. I copy and pasted the addresses from their sites so there was no mistakes. It's frustrating and has me very confused ! No idea what to do!