How to send admin password mail:
For security reasons, password mails for reseller admins are not automatically sent. Instead, you have to do this manually.
1. Login to your reseller web app (https://yourdomain.com/reseller)
2. Go to the list of reseller admins:
3. Click the name of the admin that needs a password mail, and you will see this popup:
4. All you need to do is click "RESEND INVITATION/PASSWORD MAIL", and the password mail will be sent.