How do I know if I have a deliverability problem?

If your open rates have dropped below 20% and keep declining, you probably do. Other red flags: high bounce rates, low click rates even when opens seem okay (that means you're in Promotions), and revenue per email declining despite sending more. We can run a diagnostic in 48 hours.

How long does it take to fix deliverability?

Minor issues — missing authentication, bloated list — can be resolved in a week. Moderate problems — Promotions tab placement, declining reputation — take 2-3 weeks. Severe damage — spam blacklisting, domain reputation below 30 — takes 3-4 weeks of structured warm-up. We set realistic timelines based on the severity.

Will cleaning my list lose me potential revenue?

The subscribers we remove aren't generating revenue — they're costing you revenue by dragging down your sender reputation. A list of 50,000 engaged subscribers will outperform a list of 100,000 where half never open. Every time. We've seen brands double their email revenue after cutting their list in half.

What's DKIM, DMARC, and SPF — and do I need them?

They're email authentication protocols that prove to Gmail, Yahoo, and other ISPs that your emails are really from you. Without them, ISPs treat your emails as suspicious. Google and Yahoo now require DKIM and DMARC for bulk senders — if you're missing them, your emails may not reach the inbox at all.

Can you help if we've been blacklisted?

Yes. We've handled blacklist removals for multiple clients. The process involves identifying the cause, submitting delisting requests, cleaning the list, and warming up the domain from scratch. It's recoverable — but it takes discipline and patience.

Email Deliverability

We took a brand from 40% spam placement back to 98% inbox in 21 days. Here's how.

A supplement brand came to us panicking. Their Black Friday campaign went out to 85,000 subscribers and generated almost nothing. Open rates had cratered to 9%. They thought Klaviyo was broken. It wasn't. Their emails were landing in spam.

Here's what had happened. They'd been blasting their full list twice a day for three months — no segmentation, no sunset flow, no attention to engagement signals. Gmail and Yahoo did exactly what they're designed to do: they flagged the sender as low-quality and started routing emails to spam. By the time BFCM hit, 60% of their sends never reached an inbox.

We ran a full deliverability audit in 48 hours. Found three critical issues: a poisoned sending domain with a reputation score of 23/100, 34,000 unengaged subscribers dragging down their metrics, and missing DKIM/DMARC authentication. We implemented a 21-day recovery protocol — list purge, domain warm-up schedule, engagement-based sending, re-authentication — and got them back to 98% inbox placement before December was over. Their Q1 email revenue tripled compared to the prior year.

If your open rates are tanking and you can't figure out why, the problem is almost certainly deliverability. And the longer you wait, the harder the fix gets.

Let's Talk Deliverability15 min. No pitch deck.

98%

Inbox Placement Rate

21 Days

Avg. Recovery Time

150+

Accounts Audited

Gold

Klaviyo Partner

Warning signs your deliverability is shot

Open rates have dropped below 20% and keep sliding month over month
You check Gmail on a test account and your emails land in Promotions or Spam
Your Klaviyo account shows a "deliverability warning" you've been ignoring
You've never set up DKIM, DMARC, or SPF authentication on your sending domain
You send to your full list every time because "more sends = more revenue" (it doesn't)

Deliverability damage is silent. You don't get an alert when Gmail moves you to spam. You just see open rates drop and blame the subject line. By the time you realize the real problem, months of revenue have been lost.

What we do for Global brands

Full deliverability audit

Domain reputation scoring, authentication checks (SPF, DKIM, DMARC), blacklist scanning, inbox placement testing across Gmail, Yahoo, Outlook, and Apple Mail. We find every issue dragging you down.

Domain warm-up and recovery

Structured warm-up protocols for new or damaged sending domains. Gradual volume increase to engaged segments first, then expansion as reputation rebuilds. Most recoveries take 14-28 days.

List hygiene and sunset flows

We purge hard bounces, identify unengaged subscribers, build sunset flows that give dormant contacts one last chance — then automatically remove them. Smaller list, higher engagement, better placement.

Ongoing monitoring

Weekly deliverability checks, reputation score tracking, and proactive alerts if anything starts to slip. We catch problems before they become crises.

Like what you see?

Let's talk about your brand.

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How we work

Step 01

Diagnose the damage

Full audit of your sending domain, authentication records, blacklist status, inbox placement rates, and engagement metrics. We pinpoint exactly what's wrong.

Step 02

Clean the list

Remove hard bounces, suppress spam traps, segment by engagement, and build sunset flows. This alone can lift open rates by 5-10 points.

Step 03

Warm up the domain

Structured sending protocol — start with your most engaged subscribers, gradually increase volume and expand to less engaged segments. Rebuild trust with ISPs methodically.

Step 04

Monitor and protect

Weekly reputation checks, placement testing, and list hygiene maintenance. Deliverability isn't a one-time fix — it's ongoing maintenance that prevents the problem from coming back.

Why Global brands trust us

We've audited and recovered deliverability for 150+ eCommerce brands on Klaviyo. As a Gold Partner, we have access to Klaviyo's deliverability tools and direct support channels that standard accounts don't get. We've handled everything from minor Promotions tab issues to full spam blacklist recoveries.

Questions our best clients asked first

Not sure if deliverability is costing you revenue?

Let's find out. We'll run a quick diagnostic on your sending domain, check your authentication, and test inbox placement across major ISPs. Takes 48 hours. No commitment.

Pick a Time

15 minutes. No pitch deck. Just your data and our honest take.

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