Hello folks 2 days of trying and configuring mail on my forum always failed 
so i come here, my problem is my test mail is sent but not receiving how to fix?
waited 8 hours did not received mail
help me guys…
Thread Update 
My SMTP configuration app.yml
Please document which things in Troubleshooting email on a new Discourse install you have done.
The most common problem is that you have configured mailgun for tecridible.com and your forum is sending as noreply@discourse.tecridible.com. You can edit the commented-out line at the end of your app.yml and change it, or re-configure mailgun.
Another suspect could be the disabled start tls. 587 needs start tls if I’m not mistaken.
hello @pfaffman thanks for your replay i did not use mailgun i am using mailhostbox
Edit: own mail server provided by domain
@itsbhanusharma thanks for your replay i changed to true now iam facing this error
@pfaffman You can edit the commented-out line at the end of your app.yml and change it
already changed brother 
Try checking if your mail server can actually be reached from your Discourse server. Easiest way to do that would be to run ./discourse-doctor
NB: what happens if you remove the smtp authentication string from the configuration and rebuild?
hey @itsbhanusharma i run ./discourse-doctor
and successfully got the test mail 
thank you now i got the test mail in gmail also
sorry i can’t attach the screenshot because New users can’t embed any way thanks