⚠️ If you installed Customer Fields before August 12th, 2026, your shop may be using our old email service provider, SendGrid, which does not support the settings and authentication discussed in this guide. If you would like to migrate to our new service, Postmark, please reach out to our support and request to be migrated.
Customer Fields uses Postmark as our Email Service Provider. The following customer-facing emails are sent by Customer Fields and will come from [email protected] by default:
Application received - Sent to a customer when they submit a form for account approval.
Application rejected - Sent to a customer when their account application is denied.
Application approved - Sent to a customer when their account application is approved.
Account verification - Sent to an existing customer when their email must be verified.
For a full list of emails triggered and templates used by Customer Fields, see our Email templates article.
If your store uses Shopify's Legacy Customer Accounts, the Account Approval (Legacy) and Account Invite emails will be sent from Shopify, and may have different sending than what is set up in the app.
Connect a custom sender domain
If you would like to send these emails from your own domain instead, you can connect a custom sender domain by following the steps below:
2. Under Customer email sender, select Connect custom email domain:
3. Enter the sender email address you'd like to use, then click Send verification email:
4. Verify the email address, then select Get started to begin connecting your domain:
5. Add the DNS records shown during the setup process to your domain's DNS settings. This process will vary depending on your domain provider and you may need to contact them directly if you need assistance.
Once the DNS records have been added and propagated, click Verify to complete the setup. Propagation normally happens almost immediately but may take up to 48 hours.
After your custom sender domain has been verified, Customer Fields emails should be sent from your chosen email address.
📝 Please note that when using a custom sender domain, only Customer Fields users whose email addresses belong to that same domain will be available in the From dropdown when sending approval or rejection emails