[Alfa1]

If you are not giving information on why you were denied registration, then it will be hard to see what the problem is. You are not clearly stating your problem. Check your logs and see why you were rejected. Please do this first. Then you can expect people to try help you.

You do address one problem though: out of the box the messages to the user are pretty vague and can easily be interpreted as if the user is accused of being a spammer. I get lots of support tickets from aggravated people that have interpreted the message as such. In 99% of all cases their IP is blacklisted by SFS.

If users would instead get a message that their details are blacklisted by SFS, that thousands of websites use this third party service and that users should contact their ISP to resolve this, then users would not take this so personal. That would save a lot of support tickets as well.