You do have access to this list! :)
Please click on the Directory link you will see at the topmost part of the SaleHoo page. You will be led to a page with a Search box where you can type the product/keyword that you need wholesale suppliers for.
Filter the suppliers' search by type of supplier (choose if you need dropshippers, wholesalers, manufacturers or liquidators). You can also choose to filter by order requirements (no minimum order to brackets of price order required) , by category and sub category, or by location (drop down list of countries). You can also choose the search to show only those who can ship internationally and/or does not requiring a Tax ID. :) To see these options, just below the green box for Search, you can click on 'More Options'. Set the filters you need and click on Search. :)
Once you get the list result, just click on the supplier name and you will see each supplier's contact details, including their email addresses.
Let us know if you need more help with this. :)