To minimize spam registrations, do the following:
1) go to the Protector module in Admin, go to Preferences, and then at the bottom, at this option: "Stop Forum Spam" Checks POST data against spammers registered on www.stopforumspam.com database.
Set it to "Ban the IP (no limit)"
2) in /class/captcha/config.php, make sure that the mode is set as "text":
return $config = array(
'disabled' => false, // Disable CAPTCHA
'mode' => 'text', // default mode, you can choose 'text', 'image', 'recaptcha'(requires api key)
'name' => 'xoopscaptcha', // captcha name
'skipmember' => true, // Skip CAPTCHA check for members
'maxattempts' => 10, // Maximum attempts for each session
3) In the Profile module, go to Admin and in the Basic step located at:
set the "Save after stop" to "No", so it looks like this:
4) Starting with XOOPS 2.5.7, in Preferences for the Profile module, set the "Use Captcha after the second Registration step
" option to "Yes" (it is the default)