DMARC Policy

Hi,

I have a question in regards to the DMARC policy. When you have a policy in place, let’s say a quarantine policy, does that affect the way your email is delivered to recipients of another domain too, or does the policy only affect emails delivered within your own domain? if an email fails DMARC will that mean another domain recipient of your email be put it in their spam?

Hope that makes sense.

Thanks

Hi az0 and welcome to the forums.

A DMARC policy will be checked for all emails sent to any receivers where the From address is from any of your domains. It is a means for you, the domain owner, to tell the world how they should handle emails that fail a DMARC authentication check. This will apply to inbound mail to your email security provider if it supports DMARC checking, and all other receivers. Some scenarios to helps illustrate.

This means any email, regardless of who the sender is, will abide by what your DMARC record say if the email is spoofing your domain. A quarantine policy means the receiver is not to reject the email failing DMARC, but should apply a high form of scrutiny and preferably isolate the email away from the intended recipient if a DMARC check fails.

I hope this helps.

-AM

When you have a policy in place, let’s say a quarantine policy, does that affect the way your email is delivered to recipients of another domain too, or does the policy only affect emails delivered within your own domain?

Both

if an email fails DMARC will that mean another domain recipient of your email be put it in their spam?

Yes, if they support DMARC.