MailScanner 5.2.1-1 Released

Mark Sapiro mark at
Tue Nov 5 19:10:05 UTC 2019

On 11/5/19 11:01 AM, Kevin Miller via MailScanner wrote:
> Groovy.
> One quick question:  Will the insertation of an "External message warning" affect DKIM/DMARC?

It will modify the message body which will break any DKIM signature
which signs the body (hard to imagine one that doesn't) and thus will
cause any DMARC check that relies on DKIM (as opposed to SPF) to fail.

Mark Sapiro <mark at>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan

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