I’ve set up an Ajax subscription form on my main site (my phplist has it’s own server) as in this post Ajax subscribe api using duncanc’s script. Settings have all been correctly set: id of the list and subscribe page etc. The script successfully subscribes someone but still gives the error message ie. error: function (request, status, error) { alert('Sorry, we were unable to process your subscription.'); This is an new set up of 3.2.4 freshly installed with the old (updated) database from 2.10.