Your email list is sitting
on untapped revenue.
We fix that.
Strategy, design, pixel-perfect HTML, and revenue-driving automations โ all under one roof. Built exclusively for eCom brands ready to scale with email.
Running Shoes
$79 $159Backpack Pro
$49 $99Trusted by brands across eCommerce, SaaS & Retail
More than an agency:
we're your email team.
Most agencies only do strategy. Most developers only write code.
We deliver the full picture: strategy, design, development and automation under one roof.
Design, Dev & Automation Under One Roof
Unlike most email agencies, we handle everything in-house: pixel-perfect HTML, revenue-driving flows, and full automation setup. No handoffs. No miscommunication. Figma to inbox, start to finish.
13+ Years, 800+ Projects Delivered
We have built and delivered 800+ projects across every type of email: campaigns, transactional, flows, and full automation series. That depth means fewer mistakes and faster results.
Your Email Looks Perfect. Everywhere.
Gmail, Outlook, Apple Mail, Samsung Mail. Your emails will render flawlessly everywhere. We test across 50+ client and device combinations before every send.
Revenue-First Approach
Every decision we make, subject lines, flow logic, send timing, is driven by one question: will this make our client more money? Every email we build is designed to make you money.
Stop juggling 3 vendors. We handle it all.
Strategy, design, pixel-perfect code, and automations โ all under one roof.
Stop coordinating between your designer, developer, and strategist.
Built for brands that take
email seriously.
From a single template to a full automation stack. Every layer, fully covered.
Email Design
Pixel-perfect, on-brand designs that stop the scroll. From first impression to repeat purchase.
Email Development
Clean HTML/CSS that renders perfectly in Gmail, Outlook, Apple Mail, and beyond.
Email Campaigns
Strategy, copy, design, and deployment for campaigns that drive opens, clicks and revenue.
Email Automations
Welcome, abandoned cart, post-purchase, win-back โ set up once, earn revenue on autopilot.
Sign-Up Forms
High-converting pop-ups and embedded forms integrated with your platform.
SMS Campaigns
SMS flows that drive urgency and recover lost revenue alongside your email program.
Klaviyo Set-Up
Full platform onboarding โ list migration, integrations, DNS, and flow architecture.
Account Audit
Comprehensive review of your email program with a prioritised action plan.
Results that speak
for themselves.
Real brands. Real numbers. Here's what we've delivered.
All Case Studies โ42% email revenue lift for a DTC fashion brand
Rebuilt their entire Klaviyo automation stack โ welcome series, abandoned cart, and post-purchase flows โ from the ground up with a data-led approach that turned automations into their #1 revenue channel.
Onboarding redesign reduced churn for B2B SaaS
Redesigned a 12-step HTML onboarding sequence, reducing early churn significantly while lifting 30-day activation rates.
ยฃ92K from 8 holiday emails for a UK retail chain
Designed and deployed 8 seasonal campaigns across Black Friday, Christmas, and New Year with an avg 4.2% CTR.
What our clients
actually say.
Don't take our word for it โ here's what brands we've worked with have to say.
โZahidul is genuinely one of the best email developers I've worked with. He turned our Figma designs into flawless HTML that rendered perfectly across every email client. Turnaround was fast, communication was excellent, and the quality spoke for itself. We've worked together for 4+ years now.โ
โOur Klaviyo flows went from generating 10% of revenue to over 35% in 3 months. Zahidul knew exactly what to build and why. Highly recommend for any eCommerce brand serious about email.โ
โExceptional HTML email developer. The templates worked perfectly in Outlook โ which is notoriously difficult. Fast, professional, and gets it right the first time. Will definitely hire again.โ
โSet up our entire Klaviyo account from scratch. Every flow, segment, and integration was done perfectly. Our abandoned cart recovery alone paid back the entire project cost in the first week.โ
Email marketing know-how.
Practical guides and strategy for email marketers who want to grow faster.
All Articles โThe 5 Klaviyo Flows Every eCommerce Store Needs in 2025
If you're not running these five automation flows, you're leaving serious money on the table.
Why Your Email Open Rates Dropped โ And How to Fix It
MPP changed everything. Here's how to interpret your metrics accurately post-2024.
HTML Email vs Drag-and-Drop: Which Converts Better?
We ran the same campaign in custom HTML and a builder. The results might surprise you.
Built by an email obsessive.
Mailrun.co is a boutique email marketing agency run by Zahidul Islam โ a specialist with 13+ years in the trenches of HTML email development and marketing automation.
With 7,000+ templates built and 807+ projects delivered on Upwork (Top Rated Plus, 100% JSS), we bring deep technical expertise and a performance-first mindset to every project.
- โKlaviyo Partner & Certified Expert
- โPixel-perfect cross-client HTML development
- โFigma / PSD / XD to HTML conversion
- โFull ESP account setup & migration
- โeCommerce automation strategy & execution
Some of our recent work.
Responsive, beautiful email templates โ battle-tested across all major clients.
Full Portfolio โReady to turn your email list
into your best sales channel?
Let's Talk โLet's build something
great together.
Whether you need a single template or a full email program overhaul โ we'd love to hear about your project. We typically respond within 24 hours.
๐ Prefer to talk first?
Book a free 30-minute discovery call โ no commitment, just a quick chat to see if we're a good fit.
Book a Free Discovery Call