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MailChimp

Supports SPF Supports DKIM

How to Set Up/Modify SPF for MailChimp

The following description addresses how to update a Domain Name Service (DNS) record to use SPF with your custom domain in MailChimp.

To utilize a custom domain, the MailChimp provider requires an SPF TXT record be added to the DNS record. This TXT record is then used by DNS to recognize email servers allowed to send messages on behalf of your custom/third-party domain. To determine whether a correspondence from the specified domain comes from an authorized messaging server, the recipient system relies on the implemented SPF TXT record. At that point, the message is either accepted, quarantined, or rejected by the email receiving system.

For convenience, be sure to log in to your MailChimp account to verify your domain and copy your TXT records. MailChimp utilizes an include mechanism during the set-up process. For example, the following scenario is the most common and would pass SPF:

v=spf1 include:servers.mcsv.net ?all

If you send email from IP 1.2.3.4 for the domain “yourcompany.com” and that domain’s SPF record includes servers.mcsv.net and the IP address passes the SPF record, this mechanism will pass.

How to Set Up/Modify DKIM for MailChimp

To implement DKIM for the MailChimp platform, follow these steps:

  1. Publish two CNAME records for your custom domain at DNS host (Note: These records will be provided to you by MailChimp). An example of a CNAME record is: k1._domainkey.yoursite.com  dkim.mcsv.net
  2. Enable DKIM signing for your custom domain in MailChimp. An example of enabling DKIM signing for your custom domain includes: New-DkimSigningConfig -DomainName yoursite.com -Enabled $true

As a user of this outbound email provider, MailChimp customers are afforded DKIM signing because it supports this mechanism. By utilizing MailChimp’s self-service portal, you can manually set up DKIM at your convenience via CNAME records mentioned above. Overall, this MailChimp product provides beneficial components (e.g., DKIM signing, self-service set up with CNAME records) that result in a streamlined process.

DKIM/SPF Setup Highlights

The below sections highlight notable characteristics of setting up DKIM and SPF for this provider as well as highlighting advanced settings if offered by this Outbound Email Source.

SPF

SPF Include Tag Required

This outbound email provider uses an include mechanism to add this provider's IP space to your SPF. To get fully set up with SPF for this provider, you will need to take the provided “include” domain and add it to your SPF record. An example of an SPF record without an include tag is compared to one with the tag added below (the include tags added are denoted in bold).

 

Initial SPF Record:

HOST TEXT
yourdomain.com v=spf1 ~all

 

SPF record include added:

HOST TEXT
yourdomain.com v=spf1 include:sender.net include:new3rdparty.com ~all

 

DKIM

Supports DKIM Signing

Yes, this outbound email provider supports DKIM signing.

DKIM Setup via CNAME

This specific email provider relies on a CNAME record (or multiple records) for DKIM set up. Below is an example a typical  CNAME Record for setting up DKIM. The HOST section will typically contain a unique name followed by the domain name you are creating the record for (In the below "s1.domainkey" is the unique name followed by the domain of "yourdomain.com". The ADDRESS section will outline where mail receivers should look for a DKIM record for the domain. Both of these values are typically auto generated when you setup DKIM via an outbound email source.

HOST ADDRESS
s1.domainkey.yourdomain.com. s1.domainkey.uXXX.wlXXX.sendgrid.net.

 

No Custom DKIM records

This outbound email provider does not allow for any modification to the DKIM records they have provided to you.

DKIM Setup Process: Self-Service Dashboard

This email provider offers a self-service dashboard where DKIM records will be setup for the account. To get DKIM setup for this provider you will login to your account at this provider and proceed to the DKIM setup area.

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