I have the latest zenphoto release running and I am getting comment spam. Does this mean akismet does not do its job? A captcha is in place.

Assuming that you have infact selected Akismet as your spam filter, then yes, it would mean it is not filtering those posts you consider spam.

Akismet is installed and a key is filled in, I get no error when I save current settings.
Is the API to report akismet mistakes implemented?

I don't see anything in the code. Maybe the authors will notice this thread and respond.

Strange, the spam keeps coming back for that one photo. I have checked it again, the captcha and akismet are both enabled. I can privately send the link if someone wants to investigate this, I am not going to link more to that photo.

And now other photos are affected as well. The captcha seems to be broken? Akismet is not working either, strange...

Are you sure the SPAM is comming from posting to zenphoto? Change your Admin password. Maybe someone has figured out that code--it is used in encrypting the CAPTCHA data.

I'm quite sure it has to do with zenphoto, I can see it in the logs. Typical behavior is as follows:
random URI has get request from an IP
some other IPs get the URI as well
followed by hosts that each do about 2 requests with POST and then disappear
the strange thing is that akismet does not seem to catch any of those spam comments?

Can you tell what the exact POST parameters were? It would be unusual for the spammer to be able to circumvent the CAPTCHA.

I did not get mod_security working to log the post parameters. I decided to try and give Mollom a shot, I now have that running. Plugin code is below, code is free to use under GPL license. It requires the PHP class from http://mollom.crsolutions.be/

And thanks for the great API, implementing this was very. I'll keep you updated with the results!

I am now wondering whether I will replace the regular captcha code with the mollom captcha. Might be interesting for other users too, but then the captcha code needs to be turned in a plugin as well.

Could you please attach your code to a ticket? Thanks!

Sure, see ticket http://www.zenphoto.org/trac/ticket/919

I will be posting mollom based CAPTCHA code too, it keeps my site spamfree at this moment (but comments continue to work). Which is how I like it.

Wow it's already included in the next version, thanks!

If you need any assistance on the captcha, let me know.

I have also posted a ticket with the CAPTCHA generator code, the combination of both stops all spam here! Ticket is http://www.zenphoto.org/trac/ticket/920
Still needs works though, because an option to choose the CAPTCHA generator needs to be in place if you want to keep the current generator working.