troubleshooting Question

DKIM Setup

Avatar of Jason Crawford
Jason CrawfordFlag for United States of America asked on
ExchangeMicrosoft 365
4 Comments1 Solution26 ViewsLast Modified:
I have setup DKIM for my custom domain in Exchange Online and it shows pass when sending a test email and inspecting the headers:

ARC-Authentication-Results: i=1; 1; spf=pass; dmarc=pass action=none; dkim=pass; arc=none
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;; s=selector2-mydomain-onmicrosoft-com;

My question is this, I have an application sending email as using IIS SMTP and I have accounted for this IP in my SPF record so it looks something like this:

v=spf1 ip4: -all

If email is sent from for will it still pass DKIM?  How do I account for that IP in my DKIM setup?
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