how to connect to Iridium Go (Ipad)

I want to use Iridium Mail and Web app to send saildocs grib requests on Ipad. When I click send the email it defaults to the ipad mail app and doesn't offer other options although I use other email clients. I do not have an Iridium Go account activated at the moment, I'm in 'armchair mode' trying to learn the program. I can see there is an option for Iridium Mail in the settings. When I have an active account and click this, will it appear as an option to send the saildocs email?

If you have entered iridium credentials and there is an iridium device somewhere, then qtVlm will send the mail through iridium without asking anything else. You will receive a grib in IMW as an attachement that you can open directly in qtVlm.

thanks