"Some people have actually been fired by e-mail, " says Charles Bermant, e-mail advice columnist for the Seattle Times.

CNN: Test your e-mail etiquette

Bob Neal, of Royal Mail, said the safety advice was not to send delivery staff out in the extreme weather.

BBC: Mail delay in south Warwickshire 'resolved within days'

Plus, Spence fired off an e-mail that summed up the advice he had given me and provided links to more information to help me increase my professional speaking platform.

FORBES: Meet Your Virtual Mentor