@SerenaS Not only that but as you can see from the posts above I have been plagued by emails every time someone has posted on threads.
I found by going to Watched threads under Forum, that I am apparently watching every thread I might have just glimpsed at.
The options were set at alert and email for every one but by unticking these, I have been at last been email free. I had already opted out of all alerts and email in preferences and alert preferences with no effect.
Also, the option at the bottom of threads seem - in my case anyway - to have the alerts and email ticked as default and even if I unticked them they still reverted to it.
I am still getting alerts on the flag for the test thread which is fine but I’ve no idea why as I opted out of all.
I am also apparently still watching every thread I visit but have no wish to do so.
I am about to experiment with trying to have alerts and emails for just a couple of threads but am nervous of doing so as I literally had dozens and dozens listed on my emai yesterday!