It's been a while since I've used the e-mail interface, but I don't recall my own messages ever coming back to me if/when they were the first message in a new topic. If you titled these such that they were one, that may be the problem.
I did see one of these, for certain, that included direct links to two pages with registry edit files related to context menus. But I see them on the web interface and everything appears there.
Brian - Windows 10 Home, 64-Bit, Version 1803, Build 17134
A great deal of intelligence can be invested in ignorance when the need for illusion is deep.
~ Saul Bellow, To Jerusalem and Back