How many emails can I send per inbox per day?

2 to 5 emails per inbox per day is the safe range that protects your domain reputation and keeps deliverability high. With 300+ inboxes, that gives you 600 to 1,500 cold emails daily without any inbox raising flags.

How many warm-up emails should I send?

5 warm-up emails per inbox per day is the sweet spot. Your sending tool (Instantly, Smartlead, or EmailBison) handles warm-up traffic automatically. Most inboxes are fully warmed within 14 to 21 days.

Can I add these inboxes to any sequencer?

Yes. Our cold email inboxes support OAuth and work with any sequencer including Instantly, Smartlead, EmailBison, Lemlist, and other sending platforms. We pre-integrate the big three for free.

How is your pricing so cheap compared to other inbox resellers?

We operate at scale with bulk-rate domain registration and automated DNS configuration. Most cold email inbox resellers charge $0.50 to $3 per inbox per month. Our $0.12 price reflects efficient infrastructure, not lower quality.

Cheap Cold Email Inboxes — $0.12/Inbox

Q: Do you sell Outlook or Google Workspace inboxes?

We provide premium Microsoft Outlook inboxes optimized for cold email deliverability. All inboxes come with free DNS setup including SPF, DKIM, and DMARC records configured correctly.

[ 01 ] Pricing

One product. One honest price.

Cold Email Infrastructure

12¢ / inbox / month

No tiers. No upsells. No surprise renewal hikes.

✓ 99 inboxes per domain
✓ Free DNS setup (SPF, DKIM, DMARC)
✓ Free integration with your sender
✓ Domain warm-up handled for you
✓ Replacement inboxes if anything breaks

Start an Order

Minimum order: 300 inboxes

Built for teams running real outbound at scale, not single-seat experiments. 300 inboxes ≈ ~3 sending domains, enough volume to fill a serious pipeline.

ii.

99 inboxes per domain

Maximum density per domain without tripping reputation flags. We handle the technical ceiling so you don't.

iii.

Free DNS & sender integration

SPF, DKIM, DMARC configured by us. Inboxes pre-loaded into Instantly, Smartlead, or EmailBison — ready to send the day they're delivered.

▸ The math

300 inboxes (minimum) $36/mo

1,000 inboxes $120/mo

5,000 inboxes $600/mo

[ 04 ] Why Teams Switch

Built for teams who want to cut cold email costs without cutting deliverability.

Most cold email inbox providers charge $0.50 to $3 per inbox per month. We charge twelve cents. Here's how we do it — and why it matters for outbound teams running campaigns at real scale.

The cheapest cold email inbox provider on the market

If you've shopped around for cold email inboxes, you already know the going rate is somewhere between $0.50 and $3 per inbox per month. At 12¢ per inbox, we're consistently the lowest-priced reseller for outbound teams running serious volume — without sacrificing deliverability or domain quality.

Premium Outlook inboxes, configured correctly

We provision Microsoft Outlook inboxes optimized specifically for cold email. Every inbox ships with full DNS configuration — SPF, DKIM, and DMARC records set up by us before delivery. No ticket queues, no broken authentication, no inboxes landing in spam on day one.

True reseller pricing on bulk inboxes

Our minimum order of 300 inboxes is built for cold email agencies, lead gen teams, and outbound operators who need volume. Reseller-friendly bulk pricing means the more inboxes you need, the more you save compared to per-seat licensing from major providers.

Native integration with Instantly, Smartlead & EmailBison

The three platforms most cold email teams actually use. We pre-load every inbox into your sender of choice using OAuth — no CSV exports, no manual configuration, no broken connections. Inboxes are live in your campaigns the day they're delivered.

Cut your cold email infrastructure cost by up to 75%

Most outbound teams spend $1,000+ per month on inbox infrastructure alone. Switching to 12centsinboxs typically reduces that line item by 70 to 80 percent — money you can redirect into copywriting, list quality, or hiring an SDR. Same volume, smaller bill.

Free DNS setup. Always. No upsells.

Other inbox resellers charge a setup fee per domain, then another fee per inbox, then a "premium DNS" tier. We don't. The 12¢ price covers everything: domain, mailbox, full DNS records, OAuth integration, and ongoing support. One number, no surprises.

[ 05 ] Process

Four steps. Five business days.

STEP 01

Email us your order

Tell us how many inboxes (300+), what sending tool you use, and any preferred domain themes.

STEP 02

We register & configure

Fresh domains, full DNS records, MX, SPF, DKIM, DMARC. All technical work handled.

STEP 03

We integrate your sender

Inboxes loaded directly into Instantly, Smartlead, or EmailBison. No CSV juggling.

STEP 04

You start sending

Warm-up runs in the background. Inboxes go live in your campaigns when ready.

[ 06 ] FAQ

Questions worth answering up front.

2–5 emails per inbox per day. This is the safe range that keeps deliverability high and protects your domain reputation. Going beyond that is where senders start hitting spam folders. With 300+ inboxes, you've got plenty of headroom — that's 600–1,500 cold emails daily without any single inbox raising flags.

5 warm-up emails per inbox per day is the sweet spot. We configure this automatically when we hand off your inboxes — your sending tool (Instantly, Smartlead, or EmailBison) handles the warm-up traffic in the background while you focus on campaigns. Most inboxes are fully warmed and ready for full sending within 14–21 days.

Yes — OAuth is supported on any sequencer. Our cold email inboxes work with Instantly, Smartlead, EmailBison, Lemlist, and any other sending platform that supports OAuth authentication. We pre-integrate with the big three for free, but if you're running something custom, you can connect them yourself in minutes.

We provide premium Microsoft Outlook inboxes optimized specifically for cold email deliverability. All inboxes come with free DNS setup including SPF, DKIM, and DMARC records configured correctly out of the box. Outlook inboxes consistently outperform Google Workspace for cold outbound at this price point — better inbox placement, fewer reputation issues, and far cheaper than Workspace seat licensing.

We operate at scale with bulk-rate domain registration and fully automated DNS configuration. Most cold email inbox resellers charge between $0.50 and $3 per inbox per month — we charge twelve cents. The price reflects efficient infrastructure, not lower quality. Same Microsoft inboxes, same DNS quality, same deliverability — just without the reseller markup.

Cheap cold email inboxes for $0.50 twelve cents a month.