Post by jabom on Jan 1, 2024 2:49:56 GMT
This pretty much sums up the power of DMARC, right? But what if the receiving mail server has its own set of local policies to treat receiving emails? Will it abide by the DMARC policies set by the sender OR will it override the sender’s policies with its own local policies? Well… DMARC specification requires mail receivers to make a good faith effort to respect Domain Owners’ published DMARC policies. So if a test of the sender’s SPF, DKIM, and From header fails on a message that should trigger what is specified in the sender’s DMARC policy (p) like quarantine, reject, or NONE.
Now let’s assume, the situation is this: ➜ Your Job Function Email List domain (mypersonaldomain.org) has DMARC policy (p=none). ➜ The e-mail server run by the receiver (theirdomain.org) rejects all mail that fails an SPF check. It means if an email sent to (theirdomain.org) fails the SPF check, it will be rejected. Right? But What will happen if an email from your domain (mypersonaldomain.org) with DMARC policy p=none is received at somedomain.org and fails the SPF check.
In this case, it will depend on the receiving mail server (how it is configured) to agree with the DMARC policy set by the sender OR reject the email by overriding the sender’s policy with rules defined in its local policy of p=reject on SPF check failure. Microsoft is a real-time example of this, as it sends all p=reject emails into the user’s junk spam folder instead of rejecting it. O considers it fine for the recipient to make the final decision on ultimate disposition. The Five Values of DMARC Policy Overrides forwarded.
Now let’s assume, the situation is this: ➜ Your Job Function Email List domain (mypersonaldomain.org) has DMARC policy (p=none). ➜ The e-mail server run by the receiver (theirdomain.org) rejects all mail that fails an SPF check. It means if an email sent to (theirdomain.org) fails the SPF check, it will be rejected. Right? But What will happen if an email from your domain (mypersonaldomain.org) with DMARC policy p=none is received at somedomain.org and fails the SPF check.
In this case, it will depend on the receiving mail server (how it is configured) to agree with the DMARC policy set by the sender OR reject the email by overriding the sender’s policy with rules defined in its local policy of p=reject on SPF check failure. Microsoft is a real-time example of this, as it sends all p=reject emails into the user’s junk spam folder instead of rejecting it. O considers it fine for the recipient to make the final decision on ultimate disposition. The Five Values of DMARC Policy Overrides forwarded.