Mailgun Works with different email

Developer help Self-hosting
1

Hi there,

I have a self-hosted subdomain install and working: blog.mydomain.com.

I had made all setup on mailgun as the following link:

I’ve setup all DNS records on cloudflare using the step by step process and created a mailgun domain: m.mydomain.com.

I’ve setup the transaction SMTP on ghost:

"mail": {
  "transport": "SMTP",
  "options": {
    "service": "Mailgun",
    "host": "smtp.mailgun.org",
    "port": 465,
    "secure": true,
    "auth": {
      "user": "noreply@m.mydomain.com",
      "pass": "password"
    }
  }
},

The transactional email works, but is not the one i’ve config.
Instead i’ve receive emails from noreply@blog.mydomain.com.

And the important part is the message comes with a warning:

This email has failed its domain’s authentication requirements. It may be spoofed or improperly forwarded.

Any ideas?

2

Did you put your Mailgun API key in the Ghost admin area for newsletters?

3

Hey… yes it is working.
The thing is the email is not the one i’ve setup.

I’ve setup the email noreply@m.mydomain.com on mailgun.
On newsletter i’ve receive an email from noreply@blog.mydomain.com.

What i understood is:

IF you are using a subdomain “blog.mydomain” for your blog, i can NOT setup another subdomain “m” or “mg”.

I’ve solve the problem setting the subdomain “blog” on mailgun.

Now its working.
Thanks.