Emails missing

Hi 

We use outlook for mac for our work emails (we are a small business).

For one of our accounts (hosted by godaddy), it only shows the last 7 days of emails then it misses a whole year.

I have spoken to the godaddy support team and they said there is nothing wrong with their settings.

I am at a loss, this is causing major issues for us as we run our business through emails.

Any help would be greatly appreciated.

Many thanks

Gemma