how do i email all submissions?

If you would like to email all of your submission data, you can export it to Excel:

http://www.jotform.com/help/44-How-to-Export-Form-Data-to-Excel

Then send the spreadsheet.  You could also create one of many different types of reports:

http://www.jotform.com/help/326-How-To-Create-Form-Reports-in-JotForm

And email a link to the report.