Hello,
I have a problem with activation mails on my site. The sign up process says the activation mail has been delivered, however no mail is received. I also tried testing the forgot password option and got the following error;
The email could not be sent.
Possible reason: your host may have disabled the mail() function.
The description clearly says that your web host may have disabled emailing.
Try other plugins like PostMan SMTP or Gmail SMTP plugin :https://wplms.io/support/knowledge-base/wplms-mail-smtp-gmail-smtp/
Are you still getting this "your host may have disabled mail() function " .If so then please contact your webhost on this .
If not and emails are not going out then please share :
site url and admin credentials with us to check this issue at your end .