E-mails sent through MailGun are going directly to the spam folder of Gmail

1

Hi,

My MailInaBox is working great, but sending e-mails through MailGun, the e-mails are going directly to the Spam folder.
My MailGun is configured to work with a different domain, which is working ok.

To resolve this issue, I tried to add the TXT record v=spf1 mx include:myotherdomain.com -all on my main domain, and on my box subdomain. After hours of searching I found this on MailGun.

2

Not correct … the SPF record needs to include MailGun.

Your TXT record should be added to the domain that is actually sending the email via MailGun, not the box subdomain.

v=spf1 mx include:mailgun.org -all is what I would propose.

3

Hi,

Thank you, I modified as you said, I will wait 24hours too see if is working.
Previously I set the record to v=spf1 mx include:myotherdomain.com -all, because in the e-mails I received via MailGun, is writing:

mailed-by:myotherdomain.com
signed-by:myotherdomain.com

4

When sending to the large mail providers, check the headers using the “view original” or “view full” or “raw message” or whatever they call it. You should see a section labeled Authentication-Results to check if you are passing their tests.

5

Thank you, It seems that DKIM and SPF are ok, but DMARC fails.

6

I see that all the DMARC’s are placed by Mailinabox, with the value v=DMARC1; p=quarantine,
should I change it to v=DMARC1; p=none for my main domain?

7

I have added to:

_dmarc.mydomain.com the TXT record: v=DMARC1; p=none; rua=mailto:contact@mydomain.com

And is working. The dmarc still fails, but I am not in the SPAM anymore. Thank you

8

This does not fix the problem of the DMARC failure, so there will still be mail providers that send the emails to spam regardless of the p=none configuration.

9

What should I do to fix the DMARC?

10

I’m guessing you have an alignment issue.

See if anything here can help you: