FREE TOOL
HippoMango Email Check
Upload an email or paste HTML. Get supported QA findings, practical fixes, and an honest account of what wasn’t checked.
No signup · Actionable results · Transparent coverageOpen Email Check
EMAIL, SMS + RETENTION STRATEGY
Email and SMS campaigns, copy, design and Klaviyo flows, managed by one specialist. Need a second look before sending? Start with the free Email Check.
FREE TO USE · NO SIGNUP · CLEAR FINDINGS
BUILT FOR THE DETAILS
QA · MONITORING · ANALYTICS · REVENUE OPPORTUNITIES
SELECTED CLIENTS
Email and lifecycle experience across ecommerce and B2B.
WHAT WE DO
Start with a free email check or bring in hands-on help for your lifecycle marketing.
FREE TOOL
Upload an email or paste HTML. Get supported QA findings, practical fixes, and an honest account of what wasn’t checked.
DONE-FOR-YOU SERVICES
Strategy, copy, design and Klaviyo execution, backed by customer insights. One experienced partner for your email program.
BEYOND THE AUDIT
I plan the calendar, write and design the emails, build the flows, and review what customers do next. You get one person who knows the whole program.
Coordinated planning, copywriting, design and deployment.
Welcome, abandonment, post-purchase and win-back.
Segmentation, reporting and retention analysis.
Email and SMS signup forms, popups and welcome journeys.
Coordinate messages with email, from product launches to timely reminders.
Spot issues, protect list health and improve sends.
THE PERSON BEHIND HIPPOMANGO

Founder, HippoMango
M.S. in Data Science, DePaul
I’m Jonathan, a lifecycle marketer with a background in copywriting and a master’s in data science. I personally handle your strategy, copy, design, Klaviyo builds and reporting. You work directly with me.
Klaviyo Partner · Shopify Partner
Meet Jonathan →CLEAR ANSWERS, NOT MAGIC SCORES
An HTML scan can’t prove an email looks right in every client. Some checks require permission or connected data. Email Check tells you what ran so you can make decisions with confidence.