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Change email sender address

Send Back in Stock emails from your own domain instead of the default address.

Updated 23 Oct 2026·2 min read·Plan: all

STEP 1: Choose custom domain, enter the email you want to use as the sender.

Note: Do not use a Gmail address (e.g., @gmail.com). Use your own domain, e.g., [email protected].

Screenshot: Note: Do not use a Gmail address (e.g., @gmail.com). Use your own domain, e.g., .

STEP 2: Click “Send verification email” in the app.

Screenshot: STEP 2: Click “Send verification email” in the app.

Open the inbox of the email you entered (e.g., [email protected]), find the email from REZ, and click the verification link. You will see a confirmation message after verifying.

Screenshot: Open the inbox of the email you entered (e.g., ), find the email from REZ, and click the verification link. You will see a confirmation mess

Screenshot: Open the inbox of the email you entered (e.g., ), find the email from REZ, and click the verification link. You will see a confirmation mess

STEP 4: Verify DKIM

In order to see the banner, you will need to refresh the app page!

Return to the app and refresh. A banner will appear asking you to verify DKIM. Download the DNS records and follow the instructions to add them to your domain.

Screenshot: Return to the app and refresh. A banner will appear asking you to verify DKIM. Download the DNS records and follow the instructions to add t

Check this guideline to see how to verify KIM.

STEP 5: Test email sender address

After adding all records, you will need to setup a full back in stock flow to test:

  1. Have an out-of-stock product
  2. Register your email
  3. Restock the product
  4. Check the email

Back in stock setup guideline · View customer email requests for an out-of-stock product · Add a DKIM Record to Your Domain

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