DKIM & SPF Setup for Constant Contact

To set up or edit your SPF record, you will need to add: include:spf.constantcontact.com

Edit existing SPF record

1. Log in to your DNS hosting provider
2. Look for a TXT containing v=spf1
3. In your existing SPF record, you will append include:spf.constantcontact.com
4. For example, if your existing record looks like v=spf1; mx; ip4:1.2.3.4; you would add the above include as follows v=spf1; mx; ip4:1.2.3.4; include:spf.constantcontact.com

Create a new SPF record

1. Follow the instructions from our How to Create a New SPF Record Guide.
2. In the Value field, enter: v=spf1 include:spf.constantcontact.com ~all and Save the TXT record.

Records for Subdomains

If you are creating a record for a subdomain, you will want to make sure that you specify the sub part of the domain in the Host/Name/Alias field for most DNS providers.

1. Enter the sub part of the domain, for example if the subdomain is mail.mxtoolbox.com you would want to enter mail into that field.

SPF and DMARC Alignment

By default, Constant Contact will set you up for sending using one of their domains for the return-path address. This domain will NOT pass SPF Alignment. At this time, this provider does NOT provide any mechanism that will allow SPF Alignment to pass. You need to enable DKIM for this provider to ensure your email will pass DMARC Compliance.

How to Set Up/Modify DKIM for Constant Contact

DKIM is an industry-standard method for associating a domain name to an email so the recipient can validate the legitimacy of the message. Moreover, DKIM requires two TXT records to be created in your DNS configuration. To enable DKIM set up for approved senders, follow the below steps:

1. Notify Account Review and Deliverability you want to self-publish for authentication

2. Inform them which domain you will be using

3. Your authentication keys will be generated and emailed to you

4. Syntax for the name of TXT record will be generated and emailed to you

5. Contact your domain administrator (or other) to create authentication records in DNS

6. In My Settings, change email you send from to your domain-based email

As a user of this outbound email provider, Constant Contact customers are afforded DKIM signing because it supports that mechanism. By utilizing Constant Contact’s DKIM set up via provider request, you can rely on their assistance to have this protocol enabled. Overall, this Constant Contact product provides beneficial components (e.g., DKIM signing, custom DKIM records, provider set up by request with TXT records) that result in a streamlined process.