How are spammers getting through?

[vinman57]

Script URL: pianowizardacademy.com/helpdesk
Version of script: The very latest
Hosting company:
URL of phpinfo.php:
URL of session_test.php:
What terms did you try when SEARCHING for a solution:

Write your message below: WE are now getting plenty of spam and it is seriously
reducing the effectiveness of Hesk Desk. I have activated captchas/ test questions, yet I still get these ridiculous useless spam messages. What I don't understand is the lack of an IP in the ticket


Date: 2012-08-23 15:04:55
Name: *******************
Email: *****************@infratunel.pt
IP: Unknown

Message:

*************************

[Klemen]

These are coming from emails (email piping or POP3 fetching) hence the lack of IP address.

HESK doesn't filter incoming mail for SPAM, your server should.