Klaviyo Deliverability Services
Emails that land in spam make you zero dollars. We find every gap in your Klaviyo setup, fix your sending infrastructure, and restore inbox placement. Your campaigns reach subscribers. Revenue follows.
Your sending reputation is eroding. Most teams find out when revenue drops.
What your Klaviyo account looks like right now
- Shared IPs absorbing spam complaints from other brands on the same server
- DKIM and DMARC records missing or set wrong, triggering spam filter flags
- Inactive contacts dragging your sender score down with every campaign send
- Automated flows reaching cold segments and tripping Gmail's bulk sender rules
- Open rates falling with no data showing where emails actually land
- Flat email revenue blamed on content when the real problem is delivery
What your Klaviyo account looks like after we finish
- Your own sending domain, with a clean IP and a documented warm-up plan
- SPF, DKIM, and DMARC configured and passing across every sending domain
- Stale contacts removed. Hard bounces suppressed. Engagement scoring active.
- Flows reach only active segments. Sunset policies keep the list clean.
- Real-time inbox placement alerts before a metric problem becomes a revenue problem
- Email drives a measurable share of revenue on every campaign you send
The cost of not fixing this
A 50,000-subscriber list with 82% inbox placement loses 9,000 contacts per send. At a 2% conversion rate and $45 average order, that is $8,100 gone on every single campaign.
Your Klaviyo sending health, managed in one place
We check domain authentication, list quality, flow segments, and live metrics. We fix what is broken. We track every improvement. Here is what our monitoring looks like.
Auto-monitoring
Every client gets weekly inbox placement checks, suppression alerts when lists go stale, and a monthly deliverability health report.
Inbox Placement
0
+14.8pp from baseline
Open Rate
0
Industry avg: 21%
Bounce Rate
0.00%
Below 2% threshold
Spam Complaint
0.000%
Below 0.08% threshold
Email Revenue Share
DMARC policy upgraded to reject
Resolved · May 14
1,203 stale addresses suppressed
Resolved · May 12
Unsubscribe rate 0.6% in campaign #47
In review · Segment refinement queued
IP warm-up phase 3 of 4 complete
Resolved · May 8
Sending domain TLS certificate renewed
Resolved · May 5
Every deliverable. Priced and scoped before any work begins.
Domain authentication and sending setup
We configure SPF, DKIM, and DMARC records on every sending domain you use. We provision a dedicated sending IP and run a structured warm-up in Klaviyo. Your brand domain is protected.
List cleaning and contact suppression
Stale contacts removed. Hard bounces suppressed. Engagement scoring applied. Sunset policies added to every active flow so your list stays clean automatically.
Klaviyo flow deliverability audit
Every active Klaviyo flow reviewed for segment quality, send timing, suppression gaps, and compliance with Gmail and Yahoo bulk sender rules.
IP warm-up plan and schedule
New sending IP or domain? We build a phased send schedule around your list size and provider mix. Volume increases gradually. Inbox placement stays protected throughout.
Deliverability monitoring and monthly reports
Monthly deliverability health report delivered to your inbox. Real-time alerts on bounce rate, spam complaint rate, and unsubscribe spikes. Inbox placement tested across Gmail, Outlook, and Yahoo.
Audit to inbox in under two weeks. Your team spends 3 hours.
We handle the technical work from start to finish. You grant access, review findings, and approve the final plan. That is it.
Day 1
Account access and starting point
You grant us read access to Klaviyo. We pull your sending history, domain records, list health scores, and the last 90 days of campaign data. Day one ends with a clear picture of your account.
Days 2 to 4
Full deliverability audit
We examine every layer: DNS records, sending domain setup, flow segments, contact suppression, bounce patterns, and spam complaint trends. We rank every issue by revenue impact.
Days 5 to 10
Fix and verify
We update your DNS records, reconfigure Klaviyo, clean your contact lists, and fix affected flows. We test every fix against real placement inboxes before we call it done.
Ongoing
Monitor and report
You get monthly health reports, real-time spike alerts, and quarterly inbox placement re-tests. Your sending reputation stays clean as your list grows.
Scoped proposal before payment. Line-by-line pricing. No hidden fees.
Every project starts with a written proposal. The price in that proposal is what you pay. No upsells. No scope creep. No surprises.
Deliverability Audit
Fixed fee. Delivered in 4 business days.
- DNS and authentication review (SPF, DKIM, DMARC)
- Inbox placement test across Gmail, Outlook, and Yahoo
- Contact list health score and problem contact report
- Priority fix list ranked by revenue impact
- 30-minute findings call with your team
Value calculation
Fixing one inbox placement issue on a 30,000-contact list recovers an average $3,200 per campaign. This audit pays for itself on the first send after you act on the findings.
Full Deliverability Fix
Most popularScoped to your list size and account complexity.
- Everything in the Deliverability Audit
- DNS and authentication records implemented for every sending domain
- List cleaning, bounce suppression, and automated sunset rules
- Flow segment review and Gmail and Yahoo compliance fixes
- IP warm-up plan and phased send schedule
- 30 days of active inbox placement monitoring
Value calculation
Average client sees a 14.8 percentage point inbox placement improvement. On a 50,000-contact list at 2% conversion and $45 average order, that is $6,660 recovered per campaign. The service pays back within two sends.
Not sure which is right? Submit your brief. We will scope the right option at no charge. No commitment required.
What happens when Klaviyo deliverability is fixed right
Gameday Gear
Headless EcommerceGameday Gear sells sports merchandise on a headless Shopify storefront. High-volume orders, loyal buyers, and email completely underperforming its potential.
The problem
Klaviyo was not receiving clean purchase and behavior data from the storefront. Domain authentication was incomplete. Emails landed inconsistently. Personalization was impossible to run reliably.
What Redefine delivered
Complete Klaviyo infrastructure rebuild: domain authentication on every sending domain, a custom API connecting the headless storefront to Klaviyo, server-side event tracking for purchases and behavior, and ongoing deliverability monitoring.
- Full domain authentication setup and verification
- Custom API connecting storefront purchase data to Klaviyo in real time
- Ongoing inbox placement and deliverability monitoring
The result
of total conversions now driven by email
We show scope, price, and proof before you book a call.
What buyers ask before they sign
Open rates are measured against delivered emails, not sent emails. If 15% of your list is reaching spam folders, those contacts never open, never count, and never show up in your rate. Open rates can look healthy while inbox placement quietly erodes. The audit measures placement directly, not inferred from open data.
SPF and DKIM are necessary but not sufficient. Gmail and Yahoo now require DMARC at enforcement level for bulk senders. Klaviyo uses its own sending subdomain. That subdomain needs separate authentication. It does not inherit your root domain setup. Stale sending domain keys, shared IP history, and growing suppression gaps all affect placement independently of your initial authentication setup.
We request Manager-level access to Klaviyo while we work on your account. We also need DNS access or coordination with whoever manages your domain records. Usually your dev team can handle this in under 10 minutes. We document every change before we make it. We send a full change record when the project closes. You can revoke our access at any time.
We reduce send volume short-term during IP warm-up, which typically runs 10 to 14 days. We send first to your most engaged contacts during that window. This protects your domain reputation. Open rates often improve mid-warm-up because only your best contacts receive mail. After warm-up, the first clean campaign typically shows the highest inbox placement we measure for that account.
Content and design do affect spam filtering: heavy image-to-text ratios, certain HTML patterns, and specific word clusters all influence placement. Our audit includes a content hygiene review. If we find that content is the primary driver, we document it clearly in the findings and can scope content optimization as a separate project. You will not receive a deliverability fix recommendation when the real issue is copy.
Built for Klaviyo brands with 5,000 or more subscribers sending regular campaigns
This service is a match if
- Your Klaviyo open rates dropped over the last 90 days and content did not change
- You launched a new sending domain or moved to a new Klaviyo account recently
- You run a headless storefront and Klaviyo is not receiving clean purchase or behavior data
- Email drives less than 30% of revenue and you want to understand why
This service is probably not right if
- Your list is under 5,000 contacts. Klaviyo's default setup handles this range well.
- You have not sent regular campaigns yet or have less than 90 days of Klaviyo send history
- Your primary need is email creative, design, or flow strategy, not fixing how email is sent
Not sure? Tell us your situation. We will be straight with you about whether we are the right team. Submit your brief.
Tell us your Klaviyo situation. We will send a proposal in 3 days.
We will review your account setup, identify what is causing the placement problem, and send a scoped proposal with line-by-line pricing. No pitch. No commitment.
Response within 48 hours. Proposal in 3 business days.
Line-by-line scoped pricing. No retainer required.
47 ecommerce brands fixed. Average 51.2% open rate delivered.
Tell us about your Klaviyo account
Submit brief → call within 48 hours → proposal in 3 days → work starts within 1 week of approval
Brief received
We will review your Klaviyo setup and send a scoped proposal within 3 business days. If we need to clarify anything first, we will email you within 48 hours.