It's global.

Thanks for your quick reply Stans. There wouldn't be an add-on that could help would there? Cheers

None that I know of, unfortunately.

Thanks anyway Stans, Cheers, Graeme.

If you need to have different settings for accounts, in the case of global options, create separate profiles and add accounts to each one. Help/Troubleshooting, about:profiles, to create and manage profiles.

Thanks for the idea sfhowes. The user is a complete technophobe. 2 instances of thunderbird would be too much for them to cope with. ;-). Cheers, Graeme