Two-factor authtentication with email

Hello everyone,

I testing the two-factor authentication in my local desktop. Two-Factor TOTP Provider works very well, but I want to try the Two-Factor Email too but sadly doesnt work. I download this app and create a user and then add a valid email address that I can check it this, but I dont recieve any email. Could you help out what missing more or what possible the problem with this ?

I try with NextCloud 28.0.4 version