I'm currently having problems receiving e-mails. It's not a problem at my end but with Demon, through whose services I've been e-mailing merrily for the last 15 years... I guess there's a first time for everything. Anyway, they're aware of the problem (it isn't just affecting me) but, 12 hours on, they've still to resolve it.
So, if you've sent an e-mail and were expecting a response, please bear with me while Demon sorts the problem out. If it continues into tomorrow, I'll set up another temporary mailing account and post the address here.
The e-mail address via Demon is up and running again.