Hi #ExternalIdentity specialists.

We have a situation where we are using passwordless and password-based user registration in the same community.

Everything is working fine (at last) : registration, user creation, login with password, password (by SMS and email), as well as numerous social login options.

One thing I can't get to work is that 

String userId = Site.createExternalUser(u, accountId, NULL);

does NOT send the user a password.

However, the user IS created correctly and when I ask to renew the user's password (on the record's page), the user DOES receive the password email.

What could be the reason for the password email not being sent out ?

I hope you can help.