Cold Email Domain Rotation

Building a tool to handle domain burns automatically. Looking for feedback + beta testers

(Not trying to be promotional - genuinely want to know if this solves a real problem for you. Will delete if mods feel it's too promotional)

The problem I'm trying to solve:

Domain burns are inevitable. Even with perfect infrastructure, you're probably losing 15-20% of your inboxes every month just from normal attrition.

The real damage isn't the burn itself, it's the 30-60+ days it takes to notice, get new domains, warm them up, and swap them in. During that time, your emails are landing in spam and you're hemorrhaging opportunities.

I've been using this formula to measure the impact:

inbox_churn_% × (days_to_replace ÷ 30) = opportunity leak %

Example:

• 20% monthly churn (typical for most operations)
• 60 days to replace (30 days to warm the new domain + delay in noticing)
• = 20% × (60÷30) = 40% opportunity leak

That's 40% fewer meetings booked, 40% fewer deals in pipeline. Just from replacement lag.

What I'm building:

A tool that keeps pre-warmed backup inboxes ready to swap in automatically when a domain burns, cutting replacement time from 60+ days to ~7 days.

Same example with 7-day replacement: 20% × (7÷30) = 4.6% leak

That's a 35% increase in opportunities, all else equal.

Important: This works with your existing setup. You keep using whatever infrastructure provider you're already with (ScaledMail, MailScale, Hypertide, etc.) and whatever sequencer you already use (Smartlead, Instantly etc.). The tool just monitors for burns and manages the backup pool + auto-swapping. You're not locked into buying inboxes from me.

The tool would:

• Monitor your sending infrastructure for burns (connects to Instantly/Smartlead/whatever you use)
• Auto-swap in pre-warmed inboxes from your backup pool when it detects issues
• Alert you when to replenish your backup pool (so you're never waiting on warmup)
• Notify you how many new domains to add to the backup pool
• Track how much pipeline leak you're preventing in actual $

My questions for you:

1. Does this problem resonate? Are you actually losing pipeline to replacement lag, or do you have this handled already?
2. If this could cut your replacement time to under 7 days and show you the $ impact, would you use it?
3. What would you need to see before trying something like this? (Specific metrics, integrations, pricing model, etc.)

Note on who this is for:

This isn't a tool for beginners or general mass-market use. If you're still dialling in your list quality, offer, or basic deliverability, those should be your priority.

This is for the top 10% of cold emailers who already have the fundamentals down and are looking to squeeze out the last 20-35% of performance through infrastructure optimisation. If a 20-35% throughput increase would materially impact your revenue, this might be worth exploring. If not, you're probably better off fixing upstream issues first.

Looking for beta testers:

Specifically looking for people running serious volume where this level of optimisation would actually move the needle. If you're sending 50k+/month across multiple campaigns and losing pipeline to replacement lag, comment here or DM me.