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Using a custom sender email address
Using a custom sender email address

Set a custom sender email address for your referral emails

Adam avatar
Written by Adam
Updated over a week ago

Set up a custom "Sent from" email to let your customers know that the referral marketing emails they're receiving are coming from you. This enhances email deliverability, prevents your emails from landing in the spam folder, and boosts your referral email open rate.

By default, emails that are sent out on your behalf are sent via

Verification methods

There are three email verification and authentication steps available in ReferralCandy:

The table below shows what the sender email address would look like for each step when verified and not verified. The text in gray are the default email username and domain.

Verification method

βœ… Verified

❎ Not verified

Not configured (Default)


Step 1: Sender email

Step 2: DMARC

Step 3: DKIM

(ReferralCandy DKIM)

Note: DMARC and DKIM verifications require technical expertise and admin access to your domain's DNS configuration.

Step 1: Verify sender email

  1. On the dashboard, go to Campaigns > Settings.

  2. Click Custom Email Domain to expand.

  3. In the Sender (From) Email Address field, enter your sender email address.

    • Optionally, set a reply-to address if you want replies to be sent to a different email address. Uncheck Use this as your reply to email, then enter the email in the Reply-to Email Address field.

    • Click Save.

  4. Click Send Verification Email.

  5. A verification email will be sent to the email address. Go to your mailbox and click the verification link to complete the verification.

  6. A confirmation email is sent once the email address is successfully verified, and a green check appears on the Custom Email Domain page.

Step 2: DMARC Verification

Note: The DMARC verification step occurs before DKIM authentication because it is possible that your DNS already has an existing DMARC record added.

Once your sender email address is verified, you are asked to verify your DMARC settings. Note that any existing DKIM or SPF verification is a prerequisite to DMARC verification.

  1. In the DMARC Verification section, click Verify DMARC.

  2. Our system makes a verification check of your domain's public DMARC record. You may also check your domain's DMARC record for confirmation from this site.

  3. A green check appears if DMARC is verified.

Important: Google requires a DMARC policy in place to send emails to Gmail personal accounts. DMARC verification is highly recommended if you're using a custom sender email address.

Part 3: DKIM authentication

The DKIM authentication removes the "via" tag from your emails and allows you to use your own domain, instead of the default This improves your reputation with email service providers and boosts email deliverability.

Steps vary depending on your domain hosting platform:

Note: You may need developer assistance to perform this action.

To configure the DNS settings:

  1. In the Start DKIM authentication section, click Create Keys.

  2. Under Add DKIM Keys, the CNAME values for your DNS configuration are provided. Use the guide from your domain hosting platform to complete the authentication.

    Note: DKIM Authentication may take up to 72 hours to validate.

  3. Once the setup is complete, a confirmation email is sent to your email address.

  4. A green check appears after authentication.

Authenticated emails

Once email verifications are complete, emails sent by ReferralCandy on your behalf show your store's name and your verified sender email address with your custom domain.

Frequently asked questions

How do I know if DKIM was successful?

In addition to the confirmation email and green checks, you will also see a banner confirming that the emails are going to be sent via the domain you selected.

What do I do if DKIM is unsuccessful?

Please check with your domain provider to ensure that your DNS settings are properly configured.

Can ReferralCandy configure my DNS for me?

No. You may need developer assistance to complete the necessary steps. Please contact your domain provider for any questions related to setting up DNS on your domain hosting platform.

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