See the attached jpeg...
What does the icon to the left of the blue ball indicate? The tool tip is attached to this icon - I have no idea what unknown.prolexic.com is. Is it good, bad or just information? What does it mean?
This may or may not be relevant, but e-mails sent via this Exchange server to hotmail accounts seem to be disappearing without trace at the moment, and previously the tooltip did display a string with 'hotmail' in it.
Thanks in advance for any help on this.