SMTP邮件-无法与主机建立连接的可能原因是什么？

Question

I am stuck through the day but couldn't find any solution for the error -

Connection could not be established with host mail.mydomain.com [php_network_getaddresses: getaddrinfo failed: Name or service not known #0]

Following is my .env file -

MAIL_DRIVER=smtp
MAIL_HOST=mail.mydomain.com
MAIL_PORT=587 // tried 25 as well
MAIL_USERNAME=info@mydomain.com
MAIL_PASSWORD=Password123
MAIL_ENCRYPTION=null
MAIL_FROM_ADDRESS=info@mydomain.com
MAIL_FROM_NAME='My App'

I have purchased domain from godaddy and hosted my app on host gator. I am not sure is there anything related to the MX record set I need to check?

What could be all possible reasons for this error? Please help me out.

Answer 1

getaddrinfo failed usually means that the host is not reachable from the machine. Maybe you didn't configure your DNS for mail.yourdomain.com ?

You can try an email client (on the same machine) with the same credentials to see if it's able to send email, I guess it wil fail as well.