I have not changed any thing and it worked fine up untill the changes where made on server level
after that the mail client says SMTP (-1) Connection Failed
The MX and DNS settings are the default
EDIT ***
The exact error is
SMTP Error (-1): Connection to server failed.
A thank you!
And know i was actually loged in using the cpannel, and i clicked a few links with no problem then it stoped working.
But again thank you!