I cant send and recibe mail

I cant send and recibe mail

my problem
i cant recive anymail
my account is 
contabilidad@hotelmesondesantarosa.com 

if i input another account i can recive and send mails
but contabilidad@hotelmesondesantarosa.com     is unabled 
to recibe and send mails

any people that helpme
Sincerely

  Laura la Contadora