Emails from k2 / SharePoint

Even in your distributed farm, the emails from the task are sent from the K2 service.

You have two options:

1) Go to your K2 server and launch the Connection String Editor: "C:Program Files (x86)K2 blackpearlHost ServerBinConnectionStringEditor.exe" and make sure your settings are correct.

2) Blackpearl setup wizard and pay close attention to the email configuration: Start > All Programs > K2 Blackpearl > K2 Blackpearl setup wizard.  You can run through this wizard without finalizing the setup to get to the email portion to test your settings.  

This was a bit tricky for me, due to the fact I have a hosted email providor.  However, I was still able to test the settings to get it all set.