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Supports SPF Does Not Support DKIM

How to Set Up/Modify SPF for SendinBlue

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

SendinBlue utilizes an include mechanism during the set-up process. For example, if you do not have an SPF record on your domain, the following scenario is the most common and would pass SPF:

v=spf1 ~all

If you do already have an SPF record on your domain, simply add the following to it:

To create an SPF record for your domain name, follow these steps:

1. Log in to control panel for your domain DNS host

2. Create a record with the following specifications:

v=spf1 ~all

3. Decide how you want to enforce SPF failures:

~all results in a soft fail (not authorized, but not explicitly unauthorized)

-all results in a hard fail (unauthorized)

?all is neutral (similar to no policy)

As shown above, enter your choice after v=spf1

4. Save changes

How to Set Up/Modify DKIM for SendinBlue

Email service providers that support DKIM check inbound email to verify whether an organization that claimed to have signed a message actually did. To create a customized DKIM record for your domain name, do the following:

1. Go to Settings

2. In the Your Senders box, click Configure

3. View list of domains and select domain you want to sign your emails (or create one)

4. Click Manage tab

5. Select Edit from dropdown menu

6. Sender Editing window opens; default setting signs your emails with domain name associated with dedicated IP address

7. Customize your DKIM signature by checking the box (I would like to use this domain name to sign my emails)

8. Enter preferred signing domain name

9. Click Save

10. Once you see green check appear, click Done

As a user of this outbound email provider, SendinBlue customers are afforded DKIM signing because it supports that mechanism. By utilizing SendinBlue’s self-service portal, you can manually set up DKIM at your convenience. Overall, this SendinBlue product provides beneficial components (e.g., DKIM signing, custom DKIM records, self-service set up with 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 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 v=spf1 ~all


SPF record include added:

HOST TEXT v=spf1 ~all


This outbound email provider does not allow a custom Return-Path address to be set. 


Supports DKIM Signing

Yes, this outbound email provider supports DKIM signing.

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.