Not receiving notifications

[bazzanoid]

Afternoon all,

Am I missing anything here?  I've set up notification emails using the default 'Mail' function for the internal PHP server, I get the following back in my inbox, I've tried adding an additional alert email as well, same error

I can't figure it out for the life of me

"A message that you sent using the -t command line option contained no
addresses that were not also on the command line, and were therefore
suppressed. This left no recipient addresses, and so no delivery could
be attempted"

[Basara]

Hello.
Please contact your hosting provider.