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    Chapter · DMARC for Mailchimp
    Revised 17 Jun 2026
    Guide · DMARC · Mailchimp

    How to set up DMARC for Mailchimp.

    Mailchimp (Intuit) is primarily a marketing ESP. Domain authentication is required as of 2024 to send to Gmail and Yahoo at any volume.

    Afsan Rahmatullah
    Afsan RahmatullahMailerMonk

    DMARC (RFC 7489) tells receiving mail servers what to do when a message claiming to be from your domain fails SPF or DKIM. You publish exactly one DMARC record at `_dmarc.<your-domain>`, regardless of which ESP you use — DMARC is a domain-level policy, not a per-sender configuration. Mailchimp doesn't run DMARC for you, but their SPF + DKIM setup is what makes your DMARC checks pass.

    Start every domain at `p=none` with a `rua` (aggregate report) address pointing somewhere you actually read. Watch the reports for two to four weeks to confirm 100% of legitimate mail is aligned, then progress to `p=quarantine` and finally `p=reject`. Skipping the monitoring step is the single most common way founders accidentally block their own mail.

    Publish these DNS records

    Add the following record(s) to your domain's DNS zone. Most registrars (Cloudflare, Route 53, Namecheap, GoDaddy) accept values exactly as shown.

    Record · TXT
    Type
    TXT
    Host
    _dmarc
    Value
    v=DMARC1; p=none; rua=mailto:dmarc-reports@your-domain.com
    Why this matters
    • Mailchimp's free tier sends from `@mailchimpapp.com` by default unless you authenticate. Authentication is required to send from your own brand domain.

    Where in Mailchimp

    The DMARC configuration lives in Mailchimp → Account → Domains → Authenticate.

    Verify the records

    Once published, run the DMARC Checker on your apex domain to confirm the record parses, reporting URIs are valid, and the policy is what you intended.

    From a terminal
    dig +short TXT _dmarc.your-domain.com
    Run the free DMARC checker

    Common pitfalls

    Pitfall
    • Mailchimp's authentication wizard sometimes verifies CNAMEs against their non-authoritative resolver, which can lag. If verification fails after publishing, wait an hour and retry rather than re-publishing.
    • If you exported a list from another tool that included unsubscribed addresses, Mailchimp's import will silently skip them. Don't assume your list size in Mailchimp matches the source.
    After you publish

    Want to know if it actually keeps working?

    MailerMonk continuously watches your DMARC record, aggregate DMARC reports, and inbox placement — and pings you the moment something drifts. Free for the first domain.

    Start free trial

    About the author

    Afsan Rahmatullah
    Afsan Rahmatullah
    MailerMonk

    Building tools that keep cold email out of spam. Writes about deliverability, DMARC, and what actually moves inbox placement.

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