InboxGuard
Built for Klaviyo agencies
Monitor the deliverability of every Klaviyo account you manage, on autopilot.
InboxGuard checks your Klaviyo accounts every day and emails you the moment bounce rate, spam complaints, or unsubscribes drift out of range — before your clients notice.
Try it for free
Based on the official Gmail/Yahoo 0.30% spam complaint threshold, in effect since February 2024.

Client A

Synced today
94/100
✅ 0.28 pt of margin before the critical Gmail/Yahoo threshold (0.30%)

Bounces

0.40%

Spam complaints

0.05%

Unsubscribes

0.30%

Opens

42.00%

Client B

Synced today
64/100
⚠️ Watch zone — 0.05 pt before the critical Gmail/Yahoo threshold (0.30%)

Bounces

1.20%

Spam complaints

0.25%

Unsubscribes

1.80%

Opens

18.00%

How it works
Three steps, and you're set
No complex integration: InboxGuard runs in the background as soon as your API key is added.
1
Connect your API key
Add a read-only Klaviyo API key for each client account. No access to your contacts, no ability to send emails.
2
Automatic daily analysis
Every day, InboxGuard calculates each account's deliverability score based on the last 30 days of campaigns.
3
Alert on the first drift
If a score drops below the critical threshold, you get an email immediately — before your client notices.
Features
Everything you need to keep an eye on your Klaviyo accounts
One view for every account you manage, and an alert the moment something goes wrong.
Multi-account dashboard
Manage every client's Klaviyo account from a single dashboard, organized by organization.
Health score out of 100
One clear score, calculated from bounce rate, spam complaints, unsubscribes, and open rate.
30-day history
Track how each account's deliverability score evolves over time, so you can spot a trend before it becomes a problem.
Automatic email alerts
The moment an account's score drops below the critical threshold, an email goes out automatically — no need to check the dashboard.
Gmail/Yahoo threshold tracking
See in real time how much margin each account has left against the 0.30% spam complaint rate that triggers automatic blocking at Gmail and Yahoo.
Automated daily analysis
Every account is checked once a day automatically, with no manual action required.
Shareable client report
Showcase your monitoring work to your clients with a read-only link, revocable in one click. No API key or sensitive data is ever exposed.
Security & privacy
Your Klaviyo API key deserves to be treated seriously
We know handing over an API key is an act of trust. Here's exactly how it's protected.
AES-256 encryption
Your API key is encrypted with AES-256 the moment it's saved to the database. It is never stored or transmitted in plain text.
Never shown again
Once saved, the key is never displayed on screen again, not even to you. To change it, just enter a new one.
Read-only access
InboxGuard only needs read access to campaign statistics. No access to contacts, no ability to send email with this key.
FAQ
Frequently asked questions

Ready to monitor your Klaviyo accounts?
Create a free account and add your first client account in under two minutes.
Try it for free
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