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In the words of Homer Simpson – Doh!!!
The latest version of bfForms might mean your visitors get “Error – Form Submitters IP Address is Blacklisted!!” if their IP Address is in the zend.spamhaus.org database – which should have never been in our forms extension, when we compiled the distribution for tonights release (v0.2.83 is affected only) we included the wrong dev level in our build script.
If you are suffering from this error then please upgrade to the latest version (currently v0.2.87) – or grab the latest version and extract the /plugins/system/blueflame/bfVerify.php file from is and upload to the same place on your server. (Upgrading the whole extension is the prefered method).
Sorry about that lesson learnt, not to build software at 2am!