Email marketing success depends heavily on whether your emails actually reach the inbox. One of the most common reasons emails fail to arrive is poor authentication. This is where mailchimp spf comes into play. Understanding and correctly configuring SPF for Mailchimp is essential for protecting your domain reputation, preventing spoofing, and improving email deliverability.
In this comprehensive guide, we’ll explain what Mailchimp SPF is, why it matters, how it works, and how to set it up correctly for optimal email performance.
What Is SPF and Why Does It Matter?
SPF stands for Sender Policy Framework. It is an email authentication method that allows domain owners to specify which mail servers are authorized to send emails on their behalf.
When an email is sent, the recipient’s mail server checks the SPF record of the sender’s domain to verify that the sending server is allowed. If the server is not listed, the email may be marked as spam or rejected entirely.
For Mailchimp users, SPF ensures that emails sent through Mailchimp are recognized as legitimate and trustworthy by receiving servers such as Gmail, Outlook, and Yahoo.
What Is Mailchimp SPF?
Mailchimp SPF refers to the SPF configuration that authorizes Mailchimp’s mail servers to send emails using your domain name.
By default, if you send emails through Mailchimp without SPF authentication, your emails may still go out, but they are far more likely to land in spam folders. Adding Mailchimp’s SPF information to your domain’s DNS records tells receiving servers:
“Mailchimp is allowed to send email on behalf of my domain.”
This significantly improves inbox placement and protects your brand from email spoofing.
How Mailchimp SPF Works
When you send an email campaign from Mailchimp:
Mailchimp’s servers send the email.
The recipient’s server checks your domain’s SPF record.
If Mailchimp is listed as an authorized sender, the SPF check passes.
The email is more likely to be delivered to the inbox.
If Mailchimp is not included in your SPF record, the SPF check fails, which can cause:
Emails marked as spam
Reduced sender reputation
Lower open and click rates
Higher bounce rates
Mailchimp SPF Record Explained
Mailchimp uses a shared SPF mechanism that must be added to your domain’s DNS records.
The standard Mailchimp SPF include statement is:
include:servers.mcsv.net
A complete SPF record typically looks like this:
v=spf1 include:servers.mcsv.net ~all
Breakdown of the SPF Record
v=spf1 – Declares the SPF version
include:servers.mcsv.net – Authorizes Mailchimp servers
~all – Soft fail for unauthorized senders
If you already have an SPF record, you must merge Mailchimp’s include into the existing record instead of creating a second SPF record.
Why You Should Never Have Multiple SPF Records
One of the most common Mailchimp SPF mistakes is creating multiple SPF records for the same domain.
? This is incorrect:
v=spf1 include:_spf.google.com ~all
v=spf1 include:servers.mcsv.net ~all
? This is correct:
v=spf1 include:_spf.google.com include:servers.mcsv.net ~all
Mail servers only evaluate one SPF record per domain. Multiple records cause SPF to fail entirely.
How to Set Up Mailchimp SPF Step by Step
Step 1: Access Your DNS Settings
Log in to your domain provider (such as GoDaddy, Namecheap, Cloudflare, or Bluehost) and open the DNS management panel.
Step 2: Locate Existing SPF Records
Look for a TXT record that starts with:
v=spf1
If one exists, you’ll need to edit it.
Step 3: Add Mailchimp’s SPF Include
Insert the following into the SPF record:
include:servers.mcsv.net
Make sure it appears before ~all or -all.
Step 4: Save and Wait for Propagation
DNS changes can take anywhere from a few minutes to 48 hours to fully propagate.
How to Verify Mailchimp SPF
Mailchimp provides domain authentication tools within your account dashboard. Once your SPF record is updated:
Go to Mailchimp ? Website ? Domains
Authenticate your sending domain
Check SPF status
You can also use third-party SPF check tools to confirm your configuration is valid.
Common Mailchimp SPF Errors and Fixes
SPF PermError (Too Many Lookups)
SPF has a limit of 10 DNS lookups. Including too many services can break SPF.
Fix: Remove unused email services or consolidate includes.
SPF Fail Due to Missing Include
If Mailchimp is not included, SPF fails.
Fix: Add include:servers.mcsv.net to your SPF record.
Incorrect SPF Syntax
Even a small typo can invalidate SPF.
Fix: Double-check spacing, spelling, and formatting.
Mailchimp SPF vs DKIM: What’s the Difference?
While Mailchimp SPF authorizes sending servers, DKIM (DomainKeys Identified Mail) adds a cryptographic signature to emails.
Feature SPF DKIM
Verifies sending server Yes No
Verifies message integrity No Yes
Improves deliverability Yes Yes
For best results, Mailchimp strongly recommends using both SPF and DKIM.
Benefits of Proper Mailchimp SPF Setup
Improved inbox placement
Reduced spam filtering
Better sender reputation
Protection against spoofing
Higher open and click-through rates
Compliance with modern email security standards
Does Mailchimp Require SPF?
Technically, Mailchimp does not force SPF configuration, but modern email providers do. Gmail and Yahoo now require proper authentication for bulk email senders. Without Mailchimp SPF, your campaigns risk being blocked or throttled.
Final Thoughts on Mailchimp SPF
Mailchimp SPF is not optional if you’re serious about email marketing success. It’s a foundational step in building trust with email providers and protecting your brand identity. Correct SPF configuration ensures Mailchimp is recognized as a legitimate sender for your domain, leading to better deliverability and campaign performance.
If you’re using Mailchimp and haven’t set up SPF yet, now is the time. It’s a small technical step that delivers massive long-term benefits.