In Microsoft's infinite knowledge it appears as though they force all emails to be sent as HTML in SharePoint 2010+. This is causing a great deal of pain as the emails that are sent from the SharePoint workflow are being 'consumed' by a mechanism and input into SQL. I have gotten an HTML stripping function added to my SQL server so that it can read the emails properly but some of the emails send as iso-8859-15 and some send as utf-8 despite my setting the 'outgoing email' charset to iso-8859-15. The UTF-8 emails are getting a base-64 encoding on it which is causing the emails to get jarbled by the consumption mechanism.
TLDR - I believe that if I were able to send all emails from workflows as plain text my woes would be forever gone. Is there a way from SharePoint Designer 2010 to force emails to send as plain text?
I found this article and AsherNotts states that he can use a string builder to strip the HTML but I do not understand how?