Sender Guardian
2025 Bulk-Sender Enforcement Ready

Stop "via shopifyemail" from eroding your brand.

The Revenue Protection concierge for Shopify + Klaviyo merchants. We fix SPF, DKIM, and DMARC so Gmail, Yahoo, and Outlook stop blocking your revenue.

If customers never see your flows or order emails, they can’t buy. Broken authentication is a revenue leak, not just a “deliverability issue.”

Book $99 Health Check → Email us a quick question

One-time audit. Clear findings. Concrete DNS & platform changes you can implement or hand off.

100% money-back if we can’t identify any material authentication or deliverability issues.

Why this suddenly matters

Gmail, Yahoo, and now Outlook.com enforce strict rules for bulk senders (5,000+ messages per day). When authentication is broken or misaligned, you face:

  • Brand dilution: Shopify rewrites your From to store+123@shopifyemail.com.
  • Outlook blocking: Immediate 5.7.515 rejection errors (your emails are deleted before they even reach the junk folder) on Outlook.com / Hotmail / Live.
  • Revenue leaks: Campaigns and flows silently landing in spam or never being delivered.

What Sender Guardian actually does

We are an MSP-lite for email authentication. We don’t write your campaigns or redesign your flows. We keep the pipes they travel through clean, authenticated, and compliant.

1. Audit. We review your DNS (SPF, DKIM, DMARC, TLSRPT) and every platform that can send using your domain. We identify alignment gaps, bloat, and failed paths causing spam placement or rewrite.
2. Fix. We provide (and can implement) precise DNS and platform changes to remove “via shopifyemail,” satisfy Gmail/Yahoo/Outlook requirements, and move safely toward enforced DMARC.
3. Guardian. (Optional) We watch your domain continuously. When a new app breaks your SPF or an attack spikes in your DMARC data, we alert you before it kills your weekend revenue.