A little background on the e-mail scheme for the html flight plan. When Delta developed the capability of creating a pdf version of the flight plan, they also added a feature to have it e-mailed. The concept behind the html flight plan was instead of taking the plain text of the flight plan and converting it into a laser printer friendly pdf, the plain text could run through a converter to make an html document with some interactive features and hyperlinks for use on the tablet. The delivery method of e-mailing the file was already developed for the pdf version and just required some adaptation.

Although this e-mail scheme was a little crude, it worked pretty well until iOS 13. The work around of using Adobe Acrobat worked pretty well in that it was approved and everybody had it already. This was clumsy, but worked until Adobe updated their app. Edge works pretty well. Moving from the current html flight plan to a dedicated app was always the plan and is potentially a good thing. The issue is in the execution of the app, Mission+.