I’m just back from a 10-day vacation (my first in 18 months) in Tenerife. And, since I completely divorce myself from the internet when I go on holidays (no laptop, no surfing the ‘net on my smartphone and no skulking off to the nearest internet cafe for an online fix), one of the things I have to contend with when I get back is the sheer amount of email that drops into my Inbox while I’m away.

When I finally …