Rent pre-warmed mailboxes to instantly scale cold email outreach

Integrates with

Skip the annoying technical setup and costs of cold email.

Get pre-warmed inboxes to instantly scale cold outreach.

Instantly book 10x more meetings

Scale cold emails like ads.

Get more inboxes, send more emails, book more meetings.

Skip 14 days of setup and warmup

You want to scale your offer right now, not in 2-4 weeks.

10x your reach today in minutes with pre-warmed and configured inboxes.

Save money on inboxes and domains

No more yearly domain payments.

Pick pre-warmed generic domains from our pool and save money.

Get 2.7x more replies

We do daily inbox placement tests to ensure your mailboxes stay healthy.

You get an assigned deliverability manager who can help improve your copy to deliver well.

Scale Your Outreach Today

20 Pre-Warmed Inboxes

Start with this plan to contact 2,000 -5,000 more prospects a month.
You can upgrade inside.

$99/month
Sold Out - Join Waitlist
Success! Check your emails in the next 2-3 days.
Oops! Something went wrong while submitting the form.

Sold Out. Join the waitlist to not miss the re-stock in 2-3 days.

What’s included
  • 20 Pre-warmed mailboxes
  • Free domains
  • Fast & Easy 5-Minute Setup
  • Plug Them Into Any Email Sending Tool
Benefits
  • Save 14 days of setup & warmup
  • Save 40% of inbox costs
  • Save $100s of dollars in domain purchases
  • 95-100% deliverability

Frequently asked questions

What exactly is this service?

We rent out pre-warmed email inboxes that are ready to send cold emails. Normally, inboxes take 14 days to warm up to avoid spam folders — we help you skip that. You get generic domains that are already warmed and configured, so you can start sending today.

How does this help me increase revenue?

Cold email is a volume game.

More inboxes = more emails sent = more meetings.

Setting everything up yourself takes weeks.

With this offer, you skip all setup and start sending cold emails in minutes.

What kind of domains do you have?

We have and regularly warm up new generic sounding domains (.com and .info) usable for every B2B niche.
Example fantasy brand names include: clientpilot, growthkit, b2bstack, connecthub, etc.
You can choose domains inside and once claimed, you can let them forward to your primary domain.

How is this different from setting up inboxes myself?

You avoid the tech hassle — no domain purchases, no DNS records, no SPF/DKIM/DMARC, no warmup period. You also save hundreds in domain + inbox costs. We handle it all.

Who is this for?

Perfect for agencies, freelancers, SaaS founders, lead gen teams, or anyone wanting to scale cold outreach fast — either to test cold email or add volume without tech setup or domain costs.

Is this risky compared to using my own domains?

No — it’s safer. Our inboxes are already warmed and tested. Plus, since you’re using generic domains, there’s no risk to your brand reputation. If you do want to move to your own domains in the future, check out our main Mailscale product.

Can I forward the domain to my main website?

Yes. You can set up forwarding to your real domain so prospects can learn more when they click your sender domain.

What’s the setup process?

Just pick your domains and mailbox names, and we send you a CSV file with login details in the same day. You can plug it into your email tool immediately.

Do I need to set anything up technically?

No setup needed. We handle DNS, SPF, DKIM, DMARC, warmup, domain forwarding — everything.

Which tools does this work with?

It works with any cold email tool that supports IMAP/SMTP — Instantly, Smartlead, Lemlist, Mailshake, Apollo, Reply.io, and 99+ others.

How do I plug the inboxes into my sending tool?

We send you a pre-formatted CSV. Just bulk import it into your sending tool (like Instantly or Smartlead). If bulk import isn’t supported, you can enter the inboxes manually.

Do I get login access to these inboxes?

Yes. You get full IMAP/SMTP credentials for each inbox.

What's the deliverability?

We maintain our own cold-email-optimized infrastructure. The inboxes are warmed and tested for 95–100% deliverability. Just follow best practices we provide (no spammy copy, avoid links, etc.).

How many emails can I send per inbox per day?

We recommend sending up to 30 cold emails + 20–30 warmup emails per inbox per day to maintain high deliverability. If your sending tool doesn't have integrated warmup functionality, we can continue to warm them up for you.

How many people can I contact with this plan?

With 20 inboxes, you can reach 2,000–5,000 prospects per month, depending on how many follow-ups you include.

How much does it cost?

$99/month for 20 pre-warmed inboxes. You can upgrade anytime for more inboxes.

Is there a free trial or guarantee?

No free trial, but we do offer a guarantee. If you don’t see 95–100% deliverability (verified via an inbox testing tool of your choice like Mailreach) while following best practices, we’ll refund you.

Can I cancel anytime?

You can easily cancel your subscription anytime by clicking here.

Do I own the inboxes and domains?

No — you’re renting them. This keeps the offer fast and affordable. If you want to own domains, check out our full Mailscale product.

Can I cancel anytime?

You can easily cancel your subscription anytime by clicking here.

Get Started
Testimonials

Thousands of customers with a competitive advantage