How to Set Up DKIM for ActiveCampaign

Enable DKIM for ActiveCampaign by publishing a CNAME record for domain authentication.

Quick Answer — The Record You Need

Record Type

CNAME

Host / Name

dk._domainkey

Value

dk._domainkey.youraccount.activehosted.com

ActiveCampaign provides the exact CNAME value in your account settings. The selector is typically "dk".

Step-by-Step Setup

Log in to ActiveCampaign

Go to your ActiveCampaign account.

Navigate to domain authentication

Go to Settings > Advanced and find the DKIM/domain authentication section.

Get the DKIM CNAME record

ActiveCampaign displays the CNAME record for DKIM. Copy the host and value.

Add the CNAME record to DNS

Create the CNAME record in your DNS provider.

dk._domainkey.yourdomain.com  CNAME  dk._domainkey.youraccount.activehosted.com

Verify in ActiveCampaign

ActiveCampaign will verify the DNS record and activate DKIM signing.

Common Gotchas

ActiveCampaign uses a CNAME record for DKIM. The exact value includes your account-specific subdomain under activehosted.com.
The DKIM selector is typically "dk". Confirm the exact value in your ActiveCampaign settings.
If you use a mailserver domain (CNAME-based sending domain), DKIM may be configured differently. Follow the instructions specific to your setup.

Verify Your Setup

After adding your DNS records, use our free DKIM checker to verify everything is configured correctly. DNS changes typically propagate within minutes, but can take up to 48 hours.

Frequently Asked Questions

What DKIM selector does ActiveCampaign use?

ActiveCampaign typically uses "dk" as the DKIM selector. The record is a CNAME pointing to your account's activehosted.com subdomain.

Does ActiveCampaign rotate DKIM keys?

Since the DKIM record is a CNAME, ActiveCampaign can rotate keys on their end without requiring DNS changes.

Do I need a mailserver domain for DKIM in ActiveCampaign?

A mailserver domain (CNAME setup) is an alternative to manual DKIM. Either approach enables DKIM signing. Check your account for the recommended method.