I didn't quite twig what Cron was, where, or how to.
Having since realised that I have to SSH into it, I've found that using the default VI editor is an absolute pain.
However having got to grips with it... seems on my server it required including "/usr/local/bin/wget" as part of the path.
A tip for other users like myself not very familiar with Crontab is to add this as the first line
MAILTO=you@domain.dom
(replacing with your own address of course) which will email any errors to you.
Martin, thanks for puting up with what in retrospect were daft questions.
General help
SMTP changes
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