

The topic has already been discussed here:
How to change the max of 20 characters for the username
https://forums.appgini.com/phpbb/viewto ... f=4&t=1717
Problem
If you want your users to sign in using their e-mail address, registration will fail

I have a customer who's domain name is 23 characters already. MAILBOXNAME + "@" + DOMAINNAME + "." + TLD can become more than 40 characters easily.
As far as I can see, the necessary changes are quite small, because you have already centralized the validation in admin\incCommon.php / is_allowed_username()-function.
I would be very

Kind Regards,
Jan