mailchimpspfdkimdmarc

Mailchimp DMARC Failures 4% of the time

Here is my weekly Postmark DMARC Digest. I currently have an allow-all DMARC policy. My last 4 weekly digests have all looked pretty similar as far as DKIM and SPF failures.

DMARC Report

I know that Mailchimp can't be SPF-aligned because of the way they configure their service, but it can be DKIM aligned.

As you can see Mailchimp fails DKIM Alignment about 4% of the time. I thought it should be good 99.9% of the time.

Is this normal?

Should I enable a quarantine or reject DMARC policy and lose 4% of my contacts?

Thanks in advance.

Solution

  • Per Mailchimp support:

    This can really just boil down to the receiving server's e-mail settings -- stricter policies are going to filter out e-mails from major ESPs like Mailchimp and that can result in you seeing some unexpected results, like what we're seeing here.