DNS Setup

Hi everyone,

I just downloaded kiwi syslog and have some problems with setup. By DNS setup I type the IP address 192.168.4.254 because my network is in the 192.168.4.0 - 192.168.4.254 range. There is a posibility to send notifications by email. When I want to send a test email I get following message:

I am totally new. Step by step advice about what to do here is very welcome.

Thanks