Free Kit

You sent 1,000 cold emails. About 160 never reached a human.

Global inbox placement sits around 84%, with Outlook at 75.6%. So roughly 1 in 6 of your emails dies in spam or vanishes before anyone reads it, and you keep blaming your copy. The Inbox Insurance Kit is the exact setup that gets you in front of real people: authentication, domains, and a day-by-day warmup table you can copy straight into your sender.

Built on 2025-2026 deliverability data Instant download Copy-paste warmup table
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Free Kit

The Inbox Insurance Kit

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What's Inside The Kit

Six pieces that decide whether your email reaches a human. Highest-impact first.

This isn't a lecture on "best practices." It's the setup checklist in the order that actually moves inbox placement, starting with the one piece that does the most and now decides whether Gmail even accepts your mail.

1

Authentication, the biggest lever you control

Full SPF, DKIM, and DMARC hits 83.75% inbox placement versus 44.99% with none. That's roughly 2.7x more likely to land. It's also mandatory now: from November 2025 Gmail moved from delaying non-compliant bulk mail to flat-out rejecting it.

2

Why you never cold email from your main domain

One bad week can burn the domain your invoices and client work run on. The Kit shows you how to buy secondary lookalike domains the right way: no hyphens, no numbers, aged where you can, isolated off the mothership so a burn never touches your real business.

3

The week-by-week warmup table

Handed over literally. Week 1: 5-20 a day. Week 2: 10-40. Week 3: 20-60. Week 4: 25-80, then hold. Never raise volume more than 20% in a day, never send before authentication is live, and give it 2-4 weeks minimum before you scale.

4

The send-math that keeps your reputation intact

The safe cold cap is 25-50 emails per inbox per day, not the 2,000-a-day technical limit Google quotes. Run 3-5 inboxes per domain. So 200 sends a day means roughly 8 mailboxes spread across 2-3 domains. The Kit does the math for your target volume.

5

The rules that keep you alive

Keep complaints under 0.1%, bounces under 2%, and honor one-click unsubscribe within 2 days. Cross any of these and providers throttle you fast. This is the daily checklist that tells you when to slow down before the damage is done.

6

Spam-word cleanup, the finishing touch

The trigger-words and formatting that still hurt you, with the honest caveat: filters weigh your reputation, authentication, and engagement far more than keywords. Necessary, but it will never save a domain that's already cooked.

Grab This If

This is your week.

If your reply rate is under 3%, it's probably not your copy.

The baseline cold-email reply rate is about 3.43%, and the top 10% of senders hit 8-12%. When you're stuck well under that, rewriting your subject line for the tenth time won't fix it. Your mail isn't getting read because it isn't getting delivered. Fix delivery first, then your copy finally gets a chance to do its job.

Why This Matters Now

Deliverability is the cheapest edge in cold email. Almost nobody has it.

7.6%
of domains are at DMARC enforcement. 81.6% have no DMARC at all, so doing this right is a near-instant edge over almost everyone you compete with
2-3 days
is all it takes to burn a domain with bad sending. Recovery typically runs 3-6 months, blacklists 6-12, and some burns never come back
2.7x
more likely to reach the inbox with full SPF, DKIM, and DMARC: 83.75% placement versus 44.99% with no authentication at all

"I scaled to 500 sends a day off my primary domain and torched it in a week. Suddenly my client work was landing in spam too. I wish I'd had this exact setup before I sent a single email. The warmup table alone would've saved me three months of cleanup."

An agency owner who learned the hard way

Get the Kit before your next send.

Authentication, secondary domains, the warmup table, the send-math, and the daily rules that keep you out of spam. Free, instant, yours to keep.

Instant access. No spam.

It's on the way.

Download starting now. If not, click here.

See how we run cold outreach with you →
Quick Questions

Before you download.

I already set up SPF, DKIM, and DMARC. Do I still need this?

Probably, yes. Setting them up and having them actually pass are two different things, and most senders never verify. The Kit shows you how to confirm yours are working, plus the domain, warmup, and volume rules that authentication alone doesn't cover.

Is this just generic email advice?

No. It's the specific cold-outreach setup for agency owners: secondary domains over your primary, the 25-50 per inbox per day cold cap instead of the 2,000 technical limit, and a literal warmup schedule. Every number in it carries its source so you can trust it.

My domain is already burned. Will this fix it?

This Kit is built to stop you burning a domain, not to revive a dead one. Recovery typically takes months and isn't guaranteed, so the honest move is to isolate the burn, set up clean secondary domains the right way, and never repeat the mistake. The Kit walks you through exactly that.

Is it really free?

Completely. We give away the setup on purpose. Once you see how precise it is, you'll understand why agencies have us run the whole client-acquisition machine for them instead of piecing it together alone.

You can spend four weeks warming domains. Or we can run this with you.

The Kit gets you into the inbox. But landing in the inbox is one link in the chain: you still need a tight list, calls that show, and a close that sticks. AgencyGod installs the whole machine with you, deliverability included, so you're not learning DMARC at midnight while your pipeline sits empty. We put $10,000 on the line. You either get the result or you get paid.

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