Richard.....
Thanks. .....In view of the last part of your comment, perhaps I shouldn't lose any sleep over it, unless BOAC has a point (?).
It is a slight mystery though. .....I've only started experimenting with OEx.6 over the last few days, with a view to possibly using it on moving ISP (have been utilising AOL's mail program up to now). .....As part of that process I sent myself a couple of trial e-mail's. The first was a standard one with no attachment, but even that wouldn't open the email without doing so via the 'Open Attachment Warning' box. .....The second, with .txt attachment, likewise; but on unchecking (as I said, in error) the 'Always ask before opening this type of file', all files opening straight into e-mail.