When you run a cron job that returns some output, that output is sent back to the user that created the cron job.
In order to stop receiving email notifications just add “>/dev/null 2>&1” at the end of your cron command line.
For example
0 * * * * ls ~ >/dev/null 2>&1
This is a nice trick in order to fix the above error.
Open up your favourite browser, *cough* Firefox *cough*, and point it to ‘https://contacts.msn.com/‘ url.
You will see a ‘Directory Listing Denied”, but that’s not the reason we are there ;)
Now click on the blue certificate section in url (it says ‘msn.com’)

then go to ‘More information’,

‘View Certificate’,

‘Details tab’

and finally ‘Export’ button.

Save the certificate into the ‘~/.purple/certificates/x509/tls_peers/’ folder, and disable/enable your MSN account in Pidgin.