Short answer: ScaledMail sets up and manages cold email inboxes for you: domains, DNS records, Google Workspace, Microsoft Outlook or SMTP mailboxes, and IP rotation. You then plug those inboxes into whatever sending tool you already use, such as Instantly or Smartlead. Pricing starts at $3.50 per Google mailbox per month, you can create an account for free without a credit card, and it scores 4.7 on Trustpilot. If you send cold email at any real volume and are tired of fixing DNS and burned domains, it is one of the simplest ways to get proper infrastructure.
Last checked 9 November 2026. Prices come from ScaledMail's own pricing page on that date. We update this page when they change.
Disclosure: some links on this page are affiliate links. If you sign up and later pay, EmailGum may earn a commission at no extra cost to you. It does not change what we say about the product.
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ScaledMail at a glance
| What | Details (November 2026) |
|---|---|
| What it is | Done-for-you cold email infrastructure: domains, DNS and mailboxes set up and managed for you |
| Inbox types | Google Workspace, Microsoft Outlook and SMTP, which you can mix in one package |
| Price | Google $3.50 per mailbox, Outlook $50 per domain (25 mailboxes), SMTP $3.75 per domain (4 mailboxes), all per month |
| Free to start | Free account, no credit card needed |
| Setup time | 24 to 72 hours |
| Pre-warmed inboxes | Available |
| Works with | Any sequencer, such as Instantly, Smartlead or similar tools |
| Support | A dedicated Slack channel for every customer |
| Scale | ScaledMail says it manages 230,000+ inboxes for 2,000+ agencies |
| Trustpilot | 4.7 out of 5 from 39 reviews |
What is ScaledMail?
Cold email at volume needs a lot of plumbing. You should not send cold outreach from your main company domain, so you buy extra domains, create several mailboxes on each, set up SPF, DKIM and DMARC records, warm the mailboxes up for weeks, and keep an eye on them so one bad campaign does not drag everything into spam. If you have read our guide to email deliverability, you know how easy it is to get one of those steps wrong.
ScaledMail does that plumbing for you. You tell it how many emails you want to send a day, pick a mix of Google, Outlook and SMTP inboxes, and its team registers or connects the domains, configures DNS, creates the mailboxes and sets up IP rotation. You then connect the inboxes to your sending tool and start your campaigns.
It is important to understand what ScaledMail is not. It does not find leads or write emails. It is the infrastructure layer underneath your outreach. If you want a tool that does everything, including finding prospects, see our Explee review instead.
How ScaledMail works
- Choose your sending volume. Set a daily or monthly email target. You also pick a sending tier: low volume is safer long term, max volume reaches more people but burns inboxes faster if you get spam complaints.
- Pick your providers. Google Workspace, Microsoft Outlook, SMTP, or any combination.
- ScaledMail builds it. Domains, DNS authentication, mailboxes and IP rotation are configured, usually within 24 to 72 hours.
- Connect and send. Add the inboxes to your sequencer and launch. If you chose pre-warmed inboxes, you can skip most of the usual warm-up wait.
ScaledMail pricing
ScaledMail prices by provider rather than by fixed plans. These are the list prices from its pricing page:
| Provider | Price | Mailboxes | Daily limit per mailbox | Reporting add-on |
|---|---|---|---|---|
| Google Workspace | $3.50 per mailbox / month | 2 to 3 per domain | Up to 25 emails | $2 per mailbox / month |
| Microsoft Outlook | $50 per domain / month | 25 per domain | Up to 10 emails | $5 per domain / month |
| SMTP server | $3.75 per domain / month | 4 per domain | Up to 10 emails | $2 per mailbox / month |
Every package includes domain registration or connection, SPF, DKIM and DMARC setup, mailbox provisioning, ongoing deliverability monitoring and a dedicated Slack support channel. Reporting is optional.
What it costs in practice
Here is what a few common setups work out to at list price, before the optional reporting add-on:
| Daily sending goal | Example setup | Approx. monthly cost |
|---|---|---|
| 250 emails / day | 10 Google mailboxes on 5 domains | $35 |
| 500 emails / day | 20 Google mailboxes on 10 domains | $70 |
| 500 emails / day | 2 Outlook domains (50 mailboxes) | $100 |
| 2,000 emails / day | Mixed Google, Outlook and SMTP (218 mailboxes on 42 domains) | $397.75 (ScaledMail's own example) |
The first three rows are our own maths from the list prices, assuming you send at the maximum daily limit per mailbox. If you choose a safer, lower sending tier you will need more mailboxes for the same volume. ScaledMail's pricing page has a package builder that works out the exact numbers for you.
ScaledMail vs setting it up yourself
You can do all of this yourself, and some people enjoy it. The trade-off looks like this:
- Cost. $3.50 per Google mailbox is about half Google's own Business Starter price ($7 per user per month on an annual plan, $8.40 monthly, at the time of writing). Outlook works out at $2 per mailbox. So ScaledMail is not a premium you pay on top; it can be cheaper than going direct.
- Time. Setting up dozens of domains and mailboxes by hand, with the right DNS records on each, takes days and is easy to get wrong. ScaledMail does it in 24 to 72 hours.
- Warm-up. Fresh inboxes need weeks of warm-up before they send properly. Pre-warmed inboxes let you start sooner.
- Control. Doing it yourself gives you full control and no third party between you and your mailboxes. Some senders value that.
ScaledMail pros and cons
Pros
- No technical setup. Domains, DNS and mailboxes are handled for you.
- Mix of providers. Google, Outlook and SMTP in one place, which spreads your risk across providers.
- Works with your existing tools. It is not a sequencer, so you keep using the sending tool you already know.
- Pre-warmed inboxes. Useful when you need to start a campaign quickly.
- Support people actually praise. The dedicated Slack channel comes up again and again in reviews.
- Free to start. No credit card is needed to create an account and build a package.
Cons
- Overkill for tiny volumes. If you send 20 cold emails a day, a couple of mailboxes you set up yourself will do.
- Costs add up at scale. Optional reporting can add a lot: in ScaledMail's own 2,000 emails a day example, reporting adds $256 a month on top of the $397.75 base.
- It is only infrastructure. You still need leads, copy and a sequencer, each usually a separate subscription.
- Outlook is sold by the domain. $50 buys 25 mailboxes, which is great value at volume but more than a small sender needs.
- Infrastructure cannot fix bad campaigns. Poor targeting or spammy copy will still burn inboxes, however well they are set up.
What do ScaledMail reviews say?
On Trustpilot, ScaledMail scores 4.7 out of 5 from 39 reviews (November 2026), almost all of them five stars. The same points come up repeatedly: fast and helpful support, the private Slack channel, quick setup, time saved compared with building infrastructure in-house, and good inbox placement, with several reviewers singling out Outlook inboxes.
We did not find recurring complaints on Trustpilot. That is encouraging, but 39 reviews is a small sample, and some independent reviewers on other sites argue it is more than small teams need. That matches our view: ScaledMail makes most sense once you are sending hundreds of cold emails a day.
Who should use ScaledMail?
Good fit: lead generation agencies, SDR teams and founders who already run cold email through a sequencer and want reliable inboxes at volume without managing DNS and domains themselves.
Not a good fit: people sending a handful of emails a day, anyone who wants a single tool that also finds leads and writes emails, and senders who prefer full control of their own infrastructure.
Before you scale up, it is worth getting the basics right. Our guides on how to write cold emails and improving email deliverability cover the parts infrastructure cannot do for you.
ScaledMail alternatives
| Option | Best for | Main difference |
|---|---|---|
| Do it yourself | Small senders who like control | Cheapest in cash, most expensive in time |
| Zapmail | Pre-warmed Google and Microsoft inboxes | Similar done-for-you inbox service, with different pricing |
| Mailforge / Infraforge | Salesforge users | Inbox infrastructure from the Salesforge family of tools |
| Instantly done-for-you accounts | Instantly users who want everything in one place | Fewer accounts to manage, less flexibility across providers |
| Explee | People who do not want to run cold email at all | Finds leads, writes and sends for you. See our Explee review |
Verdict: is ScaledMail worth it?
For anyone sending cold email at volume, yes. ScaledMail takes the slowest, most error-prone part of outbound, setting up and looking after dozens of domains and inboxes, and hands it to a team that does it all day. The prices are low, often below what the providers charge directly, the support is consistently praised, and you can mix Google, Outlook and SMTP to spread your risk. If you only send a few emails a day, set up a couple of inboxes yourself instead. If you are an agency or a growing sales team, it is well worth building a package and seeing the quote.
→ Build your ScaledMail package (free account)
ScaledMail FAQ
How much does ScaledMail cost?
Google Workspace mailboxes are $3.50 each per month, Microsoft Outlook is $50 per domain per month for 25 mailboxes, and SMTP is $3.75 per domain per month for 4 mailboxes. Optional reporting costs extra.
Is ScaledMail free?
Creating an account is free and does not need a credit card, so you can build a package and see the price. The mailboxes themselves are paid monthly.
Is ScaledMail legit?
Yes. ScaledMail says it manages more than 230,000 inboxes for over 2,000 agencies, and it has a 4.7 Trustpilot score from 39 reviews.
Does ScaledMail work with Instantly and Smartlead?
Yes. ScaledMail provides the inboxes and works with all major sequencers, so you connect the mailboxes to the sending tool you already use.
How long does ScaledMail take to set up?
Usually 24 to 72 hours for domains, DNS and mailboxes. Pre-warmed inboxes let you start sending sooner.
How many inboxes should I have per domain for cold email?
ScaledMail uses 2 to 3 mailboxes per domain for Google Workspace, 4 for SMTP and 25 for Microsoft Outlook, with daily sending limits of 25 per Google mailbox and 10 per Outlook or SMTP mailbox.