I am facing issue in mail configuration on local install ghost

I am facing issue in mail configuration on local installation. Anyone can help me, please.

You need to provide the details. Share your configuration. Explain what you tried, documentation you’ve followed, exactly why it’s not working and related logs you’ve checked.

Thanks for your reply.

“mail”: {
“transport”: “SMTP”,
“options”: {
“host”: “smtp.mailgun.org”,
“port”: 587,
“secure”: false,
“auth”: {
“user”: “postmaster@web3universe.today”,
“pass”: “e5a884ceed***************0157bc1-d1a07e51-a6a3f87e”
}
}
}

Another user just posted a similar problem. Please see the guidance provided there: