Cron fails to send email

[simonmango]

I was being sent an email notification that my cron jobs had executed until a month or so ago.

I have tried several working email addresses but these still fail.

I have checked the crontab files for the user and the file has the email address correctly entered in the [email protected] part of the crontab.

cron is running and the jobs are executing.

I've checked the cron logs but there are no email notification events logged (so either the email is not being sent or email notifications do not get logged.)

Output is NOT being piped to the null device.

I'm baffled - can anyone help?