Well we have not changed anything it it .

Please check if forgot password  email is present in your wp-admin -> emails.

Hi no email is going from system I guess . Please refer : 

https://wpmailsmtp.com/buddypress-activation-email-notifications/ 

recovery mail appearing in promotions : 

https://prnt.sc/Yfx8vJCBCkKx

to change that you might need to change from name and email : 

add this code in your wplms-customizer.php file in wplms customizer plugin : 

// Optionally change your email address

add_filter('wp_mail_from','noreply_from');

function noreply_from($from) {

return 'noreply@YOUR_DOMAIN.org'; //Replace 'YOUR_DOMAIN.org' with email address

}