Thanks Tom.
Sorry to have messed up the thread a bit.
It all began with a search as to why the browser icon blinks to be clicked on to open a site in email and ended with finding out there is an issue with Windows Mail (in the store as Mail and Calendar) being the culprit. It still presents as the same problem but I sort of made a sloppy job getting there. MS engineers need to get to it. Meanwhile the hunt for a free, good client, one with multiple accounts, was a gas.
Buy Rich an aspirin on me!
Edited by Peter1, 22 July 2020 - 05:31 AM.