Nov. 25, 2018
8:03 p.m.
On Nov 25, 2018, at 1:06 PM, Mark Sapiro <mark@msapiro.net> wrote:
A .forward normally does not cause issues with DMARC because .forward redirection normally does not transform the message in ways that break DKIM signatures.
Which assumes that the sending system includes a DKIM signature in the original message. If it does not, and the receiving system relies on SPF for DMARC alignment, then DMARC will fail since mail redirected through a .forward will always fail SPF validation.
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