OK, the default mail client in Linux Lite is thunderbird not evolution, and the default web browser is firefox not Edge. What version of Linux Lite are you using? I'm currently testing Edge on Linux Lite 5.x, and yes thunderbird opens firefox to view links in email and I have Edge set as my default browser. However when I open mail from the web with the Edge, links (URLs) display in a new tab as expected. Edge is based on chromium and should integrate with thunderbird so I will look into that. However I will not bother investigating evolution settings as this is a Linux Lite forum, and I do not run evolution on Linux Lite, nor alternatively do I run Edge on my Debian machines with evolution, so I cannot give you solutions for your specific issue here.
TC
TC
All opinions expressed and all advice given by Trinidad Cruz on this forum are his responsibility alone and do not necessarily reflect the views or methods of the developers of Linux Lite. He is a citizen of the United States where it is acceptable to occasionally be uninformed and inept as long as you pay your taxes.