Klaviyo Deliverability Fix: Authentication, Domain and List Repair
When your emails stop reaching the inbox, nothing else you do in Klaviyo can work. I fix the foundation first.
By Naomi, Klaviyo-certified, Signify Studio
One of the worst cases I have seen was a brand whose combined email and SMS revenue had fallen by about 95 percent from its peak over two years. Their send volume had barely moved. Their free trial to paid flow had slipped from 13 percent to 6.5 percent. Nobody on the team could say why, because every flow was technically running.
The cause was underneath the flows. Authentication was out of date and deliverability had rotted slowly over time. Until that was fixed, no amount of new copy or design was going to help. That is what a deliverability fix is for.
What I do in a deliverability fix
- Check and repair authentication. I audit your SPF, DKIM and DMARC records, correct whatever is missing or misaligned, and confirm they match the platforms that really send for you.
- Set up a branded sending domain. Your reputation should belong to your brand, not a shared pool.
- Clean the list. I find long-term non-engagers, run a re-engagement attempt, and suppress the ones who do not respond, so your best subscribers stop paying for everyone else.
- Build engagement-based sending. Campaigns go first to the people most likely to engage, then widen out.
- Review your sign-up forms. Weak forms are a steady source of complaints and bad addresses.
- Write it up in plain language. You get a summary of what was wrong, what I changed and what to watch.
Why I do this before anything else
It is tempting to jump to new flows or better subject lines. I understand why, because those are the visible parts. But a flow that lands in spam cannot convert, however good it is. If I skip the foundation, the client pays for work that never gets seen. So I diagnose first, and I will tell you if your flows are fine and the problem is underneath.
Start with the free scan. It checks your authentication and sending setup in about ten seconds and shows where to look first. No call required.
How it works
- Scan and audit. We confirm the problem and its causes. The $97 audit covers your whole email marketing system and is credited toward your first project.
- Fix. I repair authentication, the sending domain and list health as a fixed-scope project.
- Protect. Inbox Guard ($297 a month) keeps an eye on your sending health, so a problem gets caught early instead of months later.
If your flows need attention too, the Flow Bundle covers the audit, the deliverability fix and four core flows for $2,500, one time. You can compare every option on the pricing page, or read my guide on why Klaviyo emails go to spam.
Questions people ask me
How do I know if I have a deliverability problem?
Common signs are falling revenue with steady send volume, rising bounce or complaint rates, and fewer people engaging over time. The free scan is a quick first check.
Do you need access to my DNS?
Authentication changes happen in your DNS. I can walk you or your web person through the exact records, or work with whoever manages your domain.
Will cleaning my list hurt revenue?
Rarely. People who never engage were not buying from email, and removing them usually helps your emails reach the people who do.
Is this only for Klaviyo?
Klaviyo is my specialty and this page is written for it. The principles apply to any email platform.
Get your emails back in the inbox.
Run the free scan, then choose what to fix first.