not receiving email from gmail and clients

not receiving email from gmail and clients

Dear support,

Since December 19th  I have not received any email from any client or my own gmail accounts. I have also tried from my hotmail account and I cannot receive them either.

These are the domains I am not receiving from:
    @esa.int
    @gmail.com
    @googlemail.com
    @hotmail.com
    @diasalmeida.com

It seems to take some time also when I send them from my own domain @odcspace.com. 
I have checked through the web interface and there are no emails from these domains neither in the Inbox nor in the Spam folder. 

Could you please check and fix the problem? It's end of the year and my business is suffering a lot from this inconvenience.

Best regards and happy holidays!
   Jorge