Hi,
I have tried to register an account from Backend and I have this email (Now we have deleted this account)

Hello EP Name EP Last Name,



You have been added as a User to ****** by an Administrator.



This email contains your username and password to log in to http://www.*******.org/



Username: EP Test

Password: eptest



Please do not respond to this message as it is automatically generated and is for information purposes only.



--

This message was scanned by ******* and is believed to be clean.

So it works

This happen in 2 cases:
- Javascript Error on your site
- Spambot attack (skip the javascript code during registration)

I think Spambot attack because:
- I see many user with this email domain "carhard.pl" never logged in
- Many users with "formatName" registered at the same time with different domains
- Strange username with "yahoo.com"
- And many other

Anyway, in the future release we will add a server side(no more javascript) format name creation.