Author: John Levine Date: To: exim-users CC: cks Subject: Re: [exim] SPF and DKIM error processing when receiving emails
In article <20201106180019.12E273201A6@???> you write: > One thing to be aware of when writing DKIM related rules is that
>it's quite possible (and in some environments routine) for legitimate
>incoming email to have multiple DKIM signatures, some of which fail to
>validate and some of which do validate. One can be unhappy about this,
>but places like Microsoft Outlook365 don't care about our feelings.
FYI, that is the way DKIM is designed to work. The spec unambigously
says to ignore signatures that don't validate.