Hi,
i configured the domain to have DMARC, SPF and DKIM, everything looks good if the user authenticated and send email out. But 1 thing that i notice which will failed the DMARC will be if the mail is from the particular mailbox auto-response because auto response always send from 127.0.0.1.
my SPF : v=spf1 a mx ~all
Is there any workaround for this if i don't want to add 127.0.0.1 to my spf
Sample header:
Received: from mail.mydomain.com ([127.0.0.1]) by mail.mydomain.com with MailEnable; Wed, 10 Jul 2019 09:51:44 +0800
To: external@domain.com
Precedence: bulk
Auto-Submitted: auto-replied
Date: Wed, 10 Jul 2019 09:51:44 +0800
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