*Agencies that print sales calls with cold emails secretly use these inboxes.
Mailscale is a software that lets you instantly generate inboxes made for cold emailing.
Finally flood your sales calendar and send emails that are guaranteed to be opened.










Mailscale <> Clay Operator Special Offer
Claim the 3-months special offer, save 20% and get the Clay Handbook.
Grab it while available, you won't find this offer anywhere else on our website.
If you're looking to book 2-5 sales calls a month - or your target market is small.
Recommended to contact ~2,000 prospects a month.
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You can create up to 5 inboxes per domain.
So for this plan, you need a minimum of 3 domains.
Domains start at $9/year and you own them in case you want to discontinue Mailscale.
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So you can plug them into any email sending tool (Mailshake, Lemlist, Woodpecker, Reply, Outreach, Apollo, etc.)
We do recommend Instantly or Smartlead. They have the best deliverability and allow you to add unlimited inboxes.
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If at any point your deliverability suffers or domains get blacklisted, we unlist them for you in 14 days - If we ever fail, we will personally pay for your new domains.
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If at any point your deliverability suffers or domains get blacklisted, we unlist them for you in 14 days - If we ever fail, we will personally pay for your new domains.
If at any point your deliverability suffers or domains get blacklisted, we unlist them for you in 14 days - If we ever fail, we will personally pay for your new domains.
If you're looking to book 10-30 more sales calls a month with a normal target market size.
Recommended to contact ~10,000 prospects a month.
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You can create up to 5 inboxes per domain.
So for this plan, you need a minimum of 10 domains.
Domains start at $9/year and you own them in case you want to discontinue Mailscale.
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If you need to scale your offer and make it impossible not to book 30-100+ sales calls a month.
Recommended to contact ~30,000 prospects a month.
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What agency veterans that never run out of leads are doing differently to you
What's the secret to getting hundreds of business owners interested in your service right now?


You just have to put yourself in front of enough buyers
The simple reason you’re not getting enough clients is that you’re not being seen.
Good News: Your next 100 clients are literally an email away.
Bad News: Sending cold emails at scale is a hassle.
To not land in the spam, you need to create a lot of them and spread your volume.
The 2 Biggest Cold Email Obstacles:

1. Expensive
To land in the inbox at scale, you need 50+ email accounts which will cost you $400/month with Google/Outlook.

2. Technical Hassle
It takes days to setup the needed DNS records to land in the inbox (DKIM/DMARC/SPF) for each email account.

Mailscale automates
email inbox creation
faster & cheaper than anything else on the market.
Save hours of setting up and managing email inboxes.
Instantly generate email accounts, guaranteed to be seen by your prospects.
Book more sales meetings while saving 80% of costs.
The old way
Manually set up domains, email accounts, DMARC, DKIM, SPF, domain forwarding, email forwarding.

The new way
Let Mailscale generate email accounts for you, add all the needed DNS records, and add them to your email sending tool with a single click.


1000+ customers with a competitive advantage
Mailscale helped more than 1000 agency owners, freelancers and software founders to get more clients.
Here's what they say:

Effortlessly generate email accounts
Buy domains inside of Mailscale, generate mailboxes and instantly add them to your email sending tool.

Save 6 Hours of Manual Work
Spend 5 minutes with Mailscale instead of 6+ hours to set up your email inboxes.
-> More time for things that actually move the needle.


Save $1000 in the next 3 months
Save 4-5x the costs in comparison to other email providers.
-> More budget to hire, buy emails or to buy a guitar.
Reach Inboxes.
Not Spam Folders
Mailscale guarantees 95-100% deliverability.
But not only that.
If at any point, your domains get blacklisted as a result of people marking your emails as spam, we will get them unlisted for you.
If we ever fail within 14 days, we will replace your domains at no costs.

Frequently asked questions
Mailscale is a tool that automates the creation of company email accounts for cold outreach.
Here are your benefits:
- Generate 50+ inboxes in 5 minutes (instead of 6+ hours with Google or Outlook)
- Save 80% of costs with inboxes as low as $1/month instead of $7.20
- Get the best deliverability (we manage it for you and guarantee it)
- Never get blocked again (Google & Outlook don't allow you to cold email)
As a result, you can send more emails that land in the inbox and get more leads.
To not land in the spam, an email account should send no more than 20-30 emails per day.
Therefore, the only way to scale your outreach is by having lots of email accounts.
Example:
If you have 50 email accounts, you can target 5000-10,000 businesses a month (with a sequence of a few emails).
This is how you can get 50-100+ businesses interested in your offer.
Usually, businesses do email outreach in order to book sales calls.
By scaling your outreach with 50 or 200+ email accounts, our customers consistently book 30+ sales appointments and get 5+ clients.
Equally, a freelancer/SAAS with lower ticket offers can use email outreach to get hundreds of signups/customers.
Cold outreach will work for you if you're targeting businesses.
Therefore, any solopreneur, freelancer, agency owner or software founder can benefit from reaching out to their dream customers.
Inside of Mailscale's business plan, you'll get a full cold email course including tutorials on how you can get 10,000+ emails in any niche.
Mailscale provides you with email accounts. Think of them as your soldiers.
But you still need other tools such as an email sending tool like Instantly/Smartlead to send the emails.
Also, you need to get emails of your dream customers with tools such as Apollo.
In order to help you, we provide you with a full cold email course including how to get 10,000+ emails, set up the emails, write high converting emails etc.
All of these providers are for 'transactional emails' only.
Meaning, if you have an email list of subscribers that expect your email.
Cold outreach is against their policies and will get you banned.
The core mission of Mailscale is for you to be seen.
With our dedicated email infrastructure, our customers enjoy 95-100% B2B deliverability scores (Google Workspace & Office 365 Outlook) which you can verify with the warmup scores.
In fact, we guarantee this deliverability and if your domains ever get burned as a result of prospects marking your emails as spam, we will get them unlisted for you. If we ever fail within 14 days, we will replace your domains at no cost.
The end result is the same: Company email accounts.
But when using Google/Outlook, it would take you 12+ hours of technical setup (DKIM/DMARC/SPF etc.) to set them up and optimize for deliverability.
Also, it would cost you $400+/Month for 50 email accounts.
With Mailscale, all it takes is 5 minutes to fill out a form and you save 3-5x the costs.
In order to create email accounts, you need to buy additional domains (also if you don't use Mailscale)
That's because you can't set up 50 same emails on a single domain, you need to spread your volume.
Currently, we only offer for you to buy them inside of Mailscale since we add all the DNS records for you automatically.
You can create up to 5 emails per domain and the costs are $9-$13/year per domain.
When setting up 50 email accounts, this will effectively only add $7-$10 a month and these are your domains in case you want to cancel Mailscale in the future.
Currently not. As of now, our customers see Mailscale as a way of scaling outreach further if they already have emails and buy domains inside until they can transfer their old ones.
Yes, of course.
You can upgrade anytime no matter if you're on the monthly or yearly plan.
It's a simple process that takes you 3-5 minutes only:
1. Pick your plan
2. Purchase domains inside of Mailscale
3. Fill out a form with your desired email usernames
4. You get a CSV file with all email accounts that you can import with a single click into your email sending tool.
As with all providers, we recommend a warmup period of 1-2 weeks before starting to send campaigns.
Using a self-hosted email infrastructure is nothing new.
Large companies with thousands of employees such as TikTok don't use Google or Outlook (Also for security reasons).
They have their own infrastructure and of course, their emails land in the inbox when contacting businesses or sending emails between each other.
The only thing that's new here is that Mailscale finally makes this accessible to small business owners like yourself.
We're currently the only provider that owns the full infrastructure including SMTP servers, IP pools and more (While some others just resell accounts)
As a result, we can provide you with the best deliverability by being able to replace IPs in an instance for example.
Our infrastructure is optimized for cold email outreach and we have a full automated monitoring system that scans for blacklisting, reputation, spam reports, bounces and more so you don't have to deal with any of that.
While there's technically no limitation, you can negatively impact your reputation if you send too many emails (As with every provider).
We recommend to send a maximum of 30-50 emails per email account per day.
You can integrate the email inboxes you create with Mailscale with virtually every cold email sending tool.
That's because every cold outreach tool usually allows you to add self-hosted email accounts (IMAP/SMTP).
Mailscale provides you with all the login credentials that you need.
Example Sending Tools: Instantly.ai, Smartlead.ai, Apollo.io, Success.ai, Reply.io, Lemlist, Mailshake
Tip: If you haven't decided on a sending tool yet, we highly recommend Instantly & Smartlead (They allow you to add unlimited email accounts at no fee).
We guarantee 95-100% deliverability and if your domains ever get burned as a result of prospects marking your emails as spam, we will get them unlisted for you. If we ever fail within 14 days, we will replace your domains at no cost.
We also guarantee that you'll book 5 more sales calls in 30 days or you don't pay when using our business plan or higher and sending 10,000 cold emails following our deliverability checklist which you'll receive.
You can easily cancel your subscription anytime by clicking here.