Domain Burn Alerts: free detection for SmartLead and Instantly. Domain Burn Alerts: free for SmartLead & Instantly
Check your domainsAerosend is the only cold email infrastructure provider that takes responsibility for your deliverability. Founded in 2024 by Namit Jindal and Prabhu Rengaswamy, we tested for a full year before launching. Because cold email at scale deserves infrastructure that actually works.
Before Aerosend, we were the customer. Namit ran a lead generation agency sending 500,000 to 1.5 million cold emails every month. And he hated every infrastructure provider he used. Shared IPs. Zero monitoring. No burn detection. You'd find out a domain was burned when a client called asking why their reply rates dropped to zero. Not from your provider. From your client.
In 2024, we started building the infrastructure we actually wanted. But we didn't rush it. We spent a full year testing. Tuning warmup algorithms per ESP. Building burn detection across five metrics. Designing isolation architecture that ring-fences every ten domains on dedicated servers with aged IPs.
We launched when it was ready, not when it was fundable. Today, 150+ agencies trust Aerosend to own their deliverability. We built this for ourselves first. That's why it works.
Booked $20M+ in pipeline using cold email. Smartlead Certified Expert and Hall of Famer (top 1% of cold emailers globally). Previously ran a lead gen agency sending up to 1.5M emails/month. Built Aerosend from the infrastructure he wished existed. Personally onboards every whitelabel partner.
20+ years in software engineering and infrastructure architecture. Former Senior Architect at Trianz, building enterprise-scale analytics systems. Founded NEXUS, a tech consulting firm. Deep expertise in email systems, server architecture, and scalable infrastructure. The technical backbone behind Aerosend's isolation architecture and monitoring systems.
Every other provider provisions inboxes and walks away. We stay on the hook.
Join 150+ agencies who switched to infrastructure that actually works.
Free burnt-domain detection for SmartLead & Instantly
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Click on your profile icon in the bottom-left corner, then select “Settings” from the dropdown menu.
In the Integrations page, click on the “API Keys” tab in the left sidebar.
If you already have an API key with the all:read scope, you can use that key.
If not, click the “Create API Key” button, select the all:read scope, and make sure to save your new API key somewhere safe.
Click on the “Settings” option in the top right corner profile icon.
In the Settings page, under your profile picture, you can see the SmartLead API Key.
If you already have an API key displayed, you can use that key. If not, click the “Generate API Key” button to create a new one.
