Emails not sending from platform

I am having an issue where emails are not sent from the platform to people’s personal addresses
ie. When I assign someone as a reviewer, they do not receive this email

Any advice?

Please be sure to let us know what application you are using and what version of the application you have installed.

You will also need to share how you have currently configured your email settings, and what messages you find in your server’s error logs

you cannot sending email from your hosting but you use another domain.

for example, your hosting and then you setting administrator email from its look like you send spam email.

you can send email from your domain name.

for example :