I think the easiest thing Matt would be for them to post on here.
The other thing I could do, is to set up an email address such as examiners@greenacresmac.co.uk
This could be set up to forward any received emails, to all examiners that agree to the system (and that have email accounts).
If you'd like to canvass other examiners and gather a list of their email addresses, I can set that up.