Why Shopify Is Rewriting Your Emails to store+123@shopifyemail.com

Is your brand identity disappearing the moment it hits your customer's inbox?

You spend thousands on site design and creative assets. But when a customer places an order or resets their password, they don't see [email protected]. Instead, they see this:

The Rewrite is Just the Smoke. The Fire is Hard Blocking.

Seeing via shopifyemail.com is annoying because it hurts your brand. But it’s actually doing you a favor. It’s a visible warning light telling you that your email authentication is misaligned.

Shopify is rewriting your sender address because it cannot verify you own the domain. If Shopify doesn't trust your domain enough to display it, Gmail, Yahoo, and Outlook definitely don't trust it enough to deliver it.

The exact same broken SPF and DKIM alignment causing this rewrite is what triggers:

• Gmail 5.7.26 Errors: Emails sent to spam or rejected entirely.
• Outlook 5.7.515 Errors: Immediate hard blocking of your IP or domain.

Fixing the rewrite isn't just about vanity—it's about preventing a total revenue shut-off.

The Root Cause: Why Shopify "Takes Over" Your Address

Shopify does not want to send spam. If you haven't explicitly authorized them to send emails using your custom domain (via DNS records), they will not risk their own reputation by "spoofing" you. Instead, they rewrite the "From" address to their own domain because they know their own domain is authenticated.

1. Missing CNAME Records (DKIM Failure)

Modern email authentication relies on DKIM (DomainKeys Identified Mail). This is a digital signature that proves the email actually came from your domain. To fix this, you must add specific CNAME records to your DNS (Cloudflare, GoDaddy, etc.) that point back to Shopify.

2. DMARC Misalignment

If you have a DMARC policy set up (even p=none), you are telling inboxes: "Only accept email that aligns with my domain." If you haven't set up the CNAMEs mentioned above, Shopify's emails fail this check. Shopify rewrites the address so it passes DMARC technically—but fails to represent your brand.

The Hidden Cost: Why You Must Fix This Now

• Eroded Trust: Customers hesitate to click tracking links from weird, alphanumeric email addresses.
• Inbox Placement: Gmail and Yahoo view unauthenticated mail with suspicion. If you are sending bulk mail (over 5,000/day) and relying on this rewrite, you are at high risk of being filtered to Spam.
• Outlook Blocking: Microsoft Outlook.com is aggressively rejecting unauthenticated traffic with 5.7.515 errors.

Why "Fixed" Doesn't Mean "Finished"

Many merchants fix the rewrite once, only to find their emails failing or being rewritten again three months later. Why?

Because Shopify and Klaviyo ecosystems are dynamic.

• New Apps: Installing a new helpdesk (Gorgias), reviews app (Yotpo/Judge.me), or affiliate tool often requires DNS updates. If you miss one, you break authentication.
• Platform Updates: Shopify and Klaviyo frequently update their sending infrastructure. If your DNS is hard-coded and static, their changes can break your alignment.

This is why generic DMARC consultants fail. They treat this as a one-time "set and forget" project. We treat it as ongoing Revenue Protection.